Dude, Jack what the hell are you talking about? New Game + starts you with exactly the same stats, elements and weapons you finished the game with, therefore it is much, much easier. The only things that you no longer have are the Chrono Cross, final summons, Mastermune and all of the Level 7 Techniques.

There are no character levels in the game. Character stats all go up individually after beating stronger enemies. Your stats stay exactly the same when you start a New Game +.