I used to like commercial(because of lower corruption),but as you play .....you will find that Commercial civ barely gives less corruption and I think the difference between Commercial and Non-Commercial Civ is too little......From my point of view ,COMMERCIAL SUCKS!!!Expansionist sucks too!!No matter how large the island is,this difference can only be felt in early BC's and please ask Firaxis to improve on these two traits if not ,it is totally unfair.
I like China and Egypt's ability but because Egypt UU is a trash and get unnecesary golden age too fast when you only have 2-3 cities.I like Golden Age around Industrial and Middle age.Modern Age will not be good because getting golden age in Mid Game is the most important.DOnt listen to those Firaxis's people saying early GA is good,it is rubbish!
I have a hard time choosing between Civs that have Militaristic,Scientific,Religious or Industrious.I just wont bother to look to Civ that have Expansionist or Commercial ability
Why I like China?
Militaristic-In MY LONG Game of 16 civ,world map,at 1250 AD I have built 8 Great LEADERS! and I own all the important wonders
75-80% of my units are elite.The difference between Militaristic and Non Militaristic is obvious
Industrious-I will save my breath on this one.Industrious RULESS LIKE HEAVEN!!!They are easily the best trait.Come and see this website to listen all the praises of Industrious and know no other civ ability is better than Industrious
http://apolyton.net/forums/showthread.php?postid=973981#post973981
By the way,England is EASILY THE WORST CIV IN CIV III.
RUBBISH ABILITIES + RUBBISH UU= USELESS CIV IN CIVIII