How bad are the fish?

[scotty34]

This may or may not yield some interesting discussion, but I have a question that has perked my mind a bit. Say hypothetically, Texas Hold'em (or any form of poker for that matter) was played with all hole cards face up for everyone to see. Would there still be consistent winners and losers in this game? Would the only losers be the players that don't understand pot odds and equity, or would a very advanced player still have an edge over a mediocre player that does understand the basic principles?