Best and Worst Items

What are your favorite and least favorite item from Mario Kart?
For me, favorite is the Boo who steals items, and my least favorite is the blue shell (the one in Double Dash).

*laughs to self* My fave is the blue shell cuz of how much it screws people over and pisses them off.  I also suppose the three red shells or even the trail of bananas are my fave.

Least? Thunder cloud and red shells being aimed toward you.

I think my least favorite would be the thunder cloud as well, the way it automatically turns on is pretty annoying, I'd appreciate it more if I chose when to turn it on. Most favorite would be the bullet bill, it doesn't bring the player to first, but it brings them up enough to still be part of the race.

My least favorite was most certainly the Thunder Cloud. Thankfully it was only in the Wii version, but it still annoys me. My favorite is hard to choose, probably Triple Red Shells.