I have a love hate relationship with the Final Fantasy series myself (especially 13) I either really love the game (FF4, FF9, Tactics being some of my favourite titles), or I absolutely loath it (FF8, FF11, The tactics games they had on the DS), the only one that managed to get awkwardly stuck in between me liking and loathing it 13.
I really liked the characters for 13, but the game play and story telling were some of the worst I've put myself through (characters would keep bringing up words or names of factions or historical events and you would have no godly idea of what they were talking about until after the cut scene, when the database in your menu got updated with the description or explanation. If you need to read through a dictionary/encyclopedia to understand 90% of the story then THAT'S BAD ****ING STORYTELLING. And yeah, I finished the game, because I liked the characters and lets face it, the game wasn't hard to play, you could pretty much play through that game in your sleep everything was so easy and automatic. (in fact I managed to get through the last half of a dungeon sleeping, not sure what I did but I woke up in the middle of a cut scene and thought 'oh I'll just restart' and when I did a re-played what I 'played' through while sleeping I apparently had to fight a firggen boss battle that I had apparently beaten previously in my sleep????) It was just tedious and time consuming.
13-2 was even worse, though it didn't have the horribly liner gameplay as the first one I hated all of the new characters you were stuck playing as, as well as replaced the battle system with a 'catch a monster in the dungeon and use it to battle for you' one (one of my least liked videogame mechanics outside of pokemon) And though I told myself "This game is garbage and not fun, but I want to at least get through it far enough to see what the characters from the previous game are up to. I could not force myself through it, and just looked up the cut scene vids on youtube.
Lightening Returns I actually really enjoyed.
Also love that stupid FFRK and Theatrhythm games. I have an unhealthy addiction to them.
Aside from the FF series I really enjoy the Tales series, Disgaea series, Metal Gear series, Rune Factory series (Harvest Moon I enjoy too but have become boring for me since this one came out. I still enjoy them but not near as much) Bayonetta series, Dynasty warriors spins offs / rip offs (I actually not a huge fan of the dynasty warriors series themselves... but give them a Gundam, One Piece or Zelda skin and I can't figgen put the game down) Sonic the Hedgehog (even though... yeah... I don't think I need to explain)
I've also become unexpectedly attached to the lego games, originally I only played them with kids when visiting and I got the 'hey you like playing games, why don't you go watch the kids for us' scenarios going to relatives houses, but I kinda got hooked on them and pick 'em up for myself when they hit that 19.99 bin.