I have different favorites for each kid!
Fitted dipe~ Don't use anymore, but when we did, it was FCB/LC
Pocket dipe~ FB at night have rocked my world for a year. In a pinch an FM envelope works too.
AIO~ GWG, FCB/LC, but FCB fits better.
Wool Covers~ none atm
Knitted Wool~ none atm :
PUL Covers~ I never used PUL covers on DD after I really got into CD'ing, but when we started Proraps fit her just fine and I liked them.
Prefolds~ in the summer i loved...