My most favorite parts is plotting what's next in the canon. Whether the story is big or small, I just really love worldbuilding and odd scenarios. My early work (even the sentence structure) was very sporadic. But slowly, I've been able to get around that and start putting things together while keeping things fresh and exciting.
I also REALLY love dialogue. Jokes, insults, bad comments, or just oddball digs at my own writing or the characters I've cherished and created for about 16 years is just so much fun. It's like writing a variety sketch but the only audience watching are the characters you created that aren't involved in the story, or any friend you happen to share on the side!
The thing I least enjoy is something much of us can agree on... having an amazing idea, but it either turns out/sounds alot different than how you dreamed it, even if said same style was dreamed over and over and over again. It's just... UGH. I hate it because I had some really really good ideas. But then the style/sentencing just changed and gets elongated or silly and I have to cut it. If I could, I'd make a whole doc for Cut Content of my stories (or Deleted Scenes) just to show what originally was planned but just didn't work out.
My favorite part about writing a novel is just being able make stuff up. I can explore vast worlds in my head and grow with these characters. Yeah I can do that when reading too, but it certainly doesn't silence those chattery voices in my head if all I do is read LOL Since I'm a pantser I basically discover things at the same time the reader will discover them. It's exciting to me.
My least favorite part is sometimes the actual writing of it. I struggle with self confidence something fierce so almost every word is met with "you suck, why are you doing this?" in my head. I'm almost always at war with myself over something I've written. Sometimes I can silence that voice and fight through it because I have so much fun doing it. There are other times (such as what I'm currently going through) where the voice is so loud I can't write a word. Finding a balance between thinking I suck and enjoying writing is often a challenge. When my head is in a good space then my least favorite part is probably describing characters. I really struggle with that and wish I could get away with never having to describe them, but I have to if for no other reason than to keep people from seeing them all as white.
My favorite is thumbnails. It's quick (if you're following a script), makes me feel like I'm making significant progress, and gets me excited about the future story.
It used to be lines, but now I realized that my least favorite might be coloring. It takes the longest to do, especially if there's atypical lighting or tiny details. It's so annoying to think that I'm done only to find out that I forgot to color in the shirt buttons or put the shadow under the trees, etc.
I struggle with hands too, especially if they're positioned at a unique angle. They always somehow come out stiff and I still occasionally succumb to backwards hands syndrome. But I think feet is worse. I kinda regret designing barefoot characters.
My favorite part of making my comic page is when I'm filling in the dialogue, because it means I'm almost done. Least favorite part of making pages is pretty much the entire creation process of laying out the page, filling in the line art etc.
Favorite part: Coming up with ideas and story planning. I love doing character sketches and setting up their personality and backstory. I also like thinking up a story, then thinking "well how can I do this better" and working at it until I am satisfied.
Least favorite part: Line art. The technique I use for my main series is very time consuming. It has to do with the size of the brush and my hand not being the most steady. I have learned that increasing the brush size allows me to work faster, however when I tried this for the series, I hated the way it looked. I tend to use thicker lines on side works.
I really do love the entire creation process of comic making, but the part I don't love is I get so exhausted, that I'm often just too tired to promote it the way I should. It's like...I already spent so many hours on this thing can't I just post and run? but nah...damn promotion.
Favorite part about making comics is creating characters from my imagination. Least favorite part is the amount of time it takes for me to do line art (like what I'm doing right now. Haven't even gotten past 1 panel for the line art). 
Ikr. I'm pretty sure I've found some error that I missed in every single part I've uploaded so far without fail
My favorite part is Writing the plot itself. Especially when I'm choreographing a fight scene. I really love the entire process, drawing it, then coloring it. By sheer process of the elimination the only thing I think like the least is typesetting. Simply because by that point, I've finished all the really creative stuff.
I only write novel cause I don't know how to make a comic. Anyway, my most favorite part in writing is the beginning. It's very exciting and the idea is fresh. Inspiration keeps coming and it's very fun to read comments from my readera. And then my least favorite is the ending. Cause I'm not very good at it and I always have trouble how to end my book. 
I also hate editing cause I'm very bad in grammar, given that English is my third language and I'm too poor to pay someone edit my book.
Best part? The writing its self.
Worst part? Editing. It's a skill I'm still learning and sometimes I feel like I'm always going to struggle with it. No matter how hard I try there's always something I did wrong 
I love creating new stories for each chapter of my comic. I also love thumbnailing.
My least favorite part is repeating the shading. It's repetitive.
for me the least favorite is inking, cause i have to draw the panel again
and my favorite is coloring ^^
My favorite part is being able to bring life to my characters that already mean so much to me. Being able to share why I love them and share my story with other people. I do just enjoy drawing for what it is too.
I'd say that I hate remembering details the most. Just little things like earrings on a character or the shade of specific item. Always have to try to catch it in editing.
The deadlines can be a little overwhelming on top of work but I can't say I hate it? I like being busy and I know without a self imposed deadline I wouldn't get anywhere and just feel lazy.
My favorite part of my comic is anytime I get to draw a monster or something obscure and weird. And just go nuts with it.
My least favorite part is the line art. Definitely the line art, I'm one of those scratchy drawers so getting it nice and clean is a real pain.
