One thing that never really clicked with me and Civilization was that many factions felt similar with some small bonuses to certain playstyles. Endless Legend though resolves this by having fewer factions, but the ones there play very different. It makes picking each faction a very different play experience, though many are limited to a single playstyle. My only major gripe is the timeframe limitations. You have a hard date before the world ends and it can be a bit annoying to not let things play through to conclusion.