I usually just throw items but I'll rate them all...
Ray Gun-Plain annoying,I just throw it,yes,I am stupid
Beam Sword-Great item,great for killing opponents,one of the best throwing items
Hammer-Very annoying and hard to get away from,yet if it is in my hands,watch out
Fan-Not too great,good on Jiggly,though
Homerun Bat-Smash your friends and enemies around with one of my fav. items
Heart-One of my favorite items,but I'm usually pushed away from it,oh well
Max. Tomato-Great healing item,'nuff said
Bumper-Almost totally useless,only good for ledge guarding
Proxy. Mine-My favorite item by far,yes,I am a trickster iwth this beloved item
Bob-Omb-Very hard to handle,yet packs quite a punch
Poke Ball-If Beedrill pops up,an automatic stock loss on a high percentage,good old fashioned,lame,cheap,but cool item
Star Rod-Nothin' special,just a long range projectile strike
Fire Flower,most annoying,lamest item out there,always take it off
Top 3:
Proximinity Mine
Heart Container
Poke Ball