stealth_nsk
Deity
Civ 5 is particularly bad for this, it's the first thing I noticed in my first Civ 5 game -that most of the civs didn't seem interesting. In Civ 4 you had tiers as well, but there were a lot more good civ/leader combos.
In Civ5 civs are much more unique, that's great. They are balanced worse, that's downside. I definitely don't want to see Civ4-style leaders made by combination of small boring traits. Probably the best solution would be to limit the number of civs, but make each of them really interesting.