Best Credit Card with Rewards

[Stupid Fitz]

I have a Citi diamond preferred that used to be pretty good.  It got 5x for gas and groceries and 1x for others.  Got some pretty elite, now useless electronic stuff with the points.  They keep cutting back the rewards so I am thinking frack them.  I don't carry a balance (not a loser).  Would prefer a no fee card, but would consider if it is way worth it.  Also, have an amex corporate with rewards if that matters. 

TIA

[prome05]

Discover More is a good cash back rewards card. It's 1 percent cash back and 5 percent on certain categories each quarter.

[slucat]

I have a citi plat. it has no fee. 2% on gas, groceries and something else and 1% everywhere.  I also have the discover with the 5% quarterly catagories.  Fee free and I keep no balance.