The control scheme for Super Smash Bros is excellent. You use the A key for a normal attack, B key for special attack. The nunchuk direction controller is used to move and it's direction also changes the type of your attack. It takes about 10 minutes to learn and gives you about 6 different moves. Nothing complicated like pressing half a dozen buttons in sequence. The control scheme has the hallmark of genius - simplicity.
The arenas are awesome, they can be sprawling as well as dynamic. The wealth of characters with varied abilities is also impressive. There is a story mode (in addition to the standard tournament mode) that I'm playing through and it seems to be fun as well. Nintendo never ceases to amaze me with the quality of their releases.