There shouldn't just be tournaments with items on if people feel that they want items, it changes the game and makes you focus on a different set of skills to win.
The TC made arguments for items being on and items being off. I think it should just be another category like singles and teams.
I personally wouldn't play items because they do get in the way and you pick up items just by doing a rising aerial and I like to focus on the core game play, and I don't have any problems with the edge guarding or trading hits in the game (though I hate how insane all the b moves have become), but I like the faster stun recovery and all that cause it keeps you on your feet and you gotta think even faster if you want to do consecutive hits... can't just hold forward and chain hits together, you're forced to predict when they might try to swing back at you and then pause before continuing your attack.