I used to be really good at finishing games, but once we got decent internet where I could actually play PC games my track record became horrible. To look at the Final Fantasy titles I own in order of acquisition:

FF V: Completed except for the post game dungeon on the GBA.

FF IV: Completed

Dawn of Souls: Completed except for II's post game dungeon on the GBA

FF X: Main game completed, but didn't do most of the sidequests.

FF X-2: Main game completed, but didn't do most of the sidequests.

FF XII: Main game completed, but didn't do most of the sidequests.

FF IX: Main game completed, but didn't do most of the sidequests.

FF VIII: I got to disc 4 and just stopped for some reason I no longer remember.

FF Tactics: I am very near the end of the game, but stopped for reasons I don't remember.

FF VII: Forced myself to finish the first disc and then quit because I hated the game.

FF Tactics Advanced: Completed.

FF VI: I am still in the very early stages of the game, but never got around to continuing with it.

Final Fantasy Legend II: Started and stopped almost immediately because I hated the idea that equipment could wear out and break.

FF VII Dirge of Cerberus: Got it for Christmas but never played it as I hated VII but felt I'd need to have played it to fully enjoy this.

FF Chocobo's Dungeon 2: I played it for maybe an hour and then just never came back to it.

FF XIII: Owned but never played. Same with XIII-2 and Lightning Returns.


As for the PC games that took up my time...they aren't really games you can "finish". I played lots of dueling network when that was still around, as well as other CCGs like Hearthstone and Shadowverse. These days it's mostly Smite, as well as visual novels which have a slightly better completion record than my console games. Still need to get through Stein's Gate.