As a Tales fan, I really enjoy stories that are on the longer side, well built in plot, complimenting artwork (even if the art is just black and white or something, so long as it works for the story) with actual unique storylines (maybe that's ironic to say as a Tales fan but that's besides the point).
Some series that I particularly enjoy (with these traits) are Fisheye Placebo, Grassblades, Scurry, A Better Place, and - while they're fanfiction comics - A Tale of Two Rulers by Figment Forms (a beautifully drawn ZelGan comic), and all of LynxGriffin's Undertale works, including her True Lab Origins series, Flowey Origins series, and most impressive, her Gaster-based series, Dogs of Future Past.
Unfortunately, those stories are very few and far between in webcomics, namely because 1.) long webcomics take years to craft, years that a lot of people aren't willing to put in, 2.) there are a lot more people in webcomics who don't know how to craft a good filling story with art that holds up than those who do, 3.) it's very hard to find these types of stories in the sea of gag-a-days and BL's, and as a result, 4.) most creators just do gag-a-days, BL's, etc. as a "safety cushion" because they're simple, and there are a lot of resources and jokes/plotlines to pull from already (ex. the "anxiety sucks, look i suffer from anxiety, feel my pain" comics, "hey look i'm a woman, i suffer from my period too!!!1!!", and "I HAVE NO IDEA WHAT TO DRAW SO I'M JUST GONNA TALK ABOUT IT" strips, alongside generic cookie cutter "long ago in the land of [insert kingdom name here", "I'm a quirky girl who's in love with a mysterious guy!", and "I'm a main character who fits into all the minorities of society so that automatically makes this good reading material, it's rElAtAbLe! " plotlines.
sigh I just want a well though out story with decent character development OUTSIDE OF ROMANCE (I don't mind romance but when that's the only motivation for any and every character, ughhhh), a depthful plot that challenges the mind of the reader, and actual consequences besides "my boyfriend might dump me".
/mixes salt into tea
IS THAT TOO MUCH TO ASK