If your going that route there are really only two options worthwhile, IMO.
Barborsol is the best of the can stuff.. a better option is Kiss My Face brushless shave cream.. the big bottle is about 6 bucks and will last for eternity. Bonus: if you ever decide to use a brush the KMF literally explodes lather when used with one.
Trac II used in conjunction with the Bump Fighter handle (bump fighter cartridges suck! ) is about as good as it gets with a cartridge razor.. for disposable: that yellow & white single blade Bic sold at Wal-Mart , Walgreen , etc for $2 Per bag of 50,000 will shave you as well as anything on the market when properly hydrated and shaving for reduction.