Nice answers. I echo your sentiment through and through apart from finding Aerith a bit more attractive than Tifa (I know, I'm alone)
Like about Midgar: The destruction of Sector 7 and especially the Shinra building.
Dislike about Midgar: Wall Market.
As for Kalm, the story is awesome the first time, but on later playthroughs, it's essentially an hour-long unskippable cutscene: not my idea of fun. Heck, the thing is so long, Barret asks if you want to save during it.
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"I am SO gonna kick your ass!" - "No, no, no, no, no. I'm gonna kick YOUR ass!"
Nominate Yuri Lowell / Flynn Scifo