LogFAQs > #900691453

II is super cool for the first couple of hours, then it gets super old and hard to make yourself finish.

III is badly unfinished and has awful music but one of the coolest concepts ever, and stuff happens plot-wise often enough to keep you playing.

IV is easily the best by measures like design, graphics, story and polish but still frankly a bit of a slog.

It's weird but even though it's got loads of problems III is the one I can't put down. I played it through 4 times to get all the endings. They were all the same though. Just pick a different wife at the end of genertion 1 and you can get pretty much everything there is to get out of it in 2 playthroughs instead of 4.