The best character to play as on Mario Kart Wii is King Boo.
Why?
Because King Boo has the best handling in the game. You can use him on anything fast and will make it easier to turn. Using funky kong on something fast will make you smash in to a wall because he is going so fast.
My personal favourite combination is King Boo on the Bowser Bike on manual.
PS. Because there is no separate question for 'who is the fastest character on Mario kart wii', the fastest is Baby Daisy. Not Funky Kong.
There really is no strength involved in Mario Kart Wii. If you want to know what the heaviest kart in Mario Kart Wii is, it is the Jetsetter. The heavier the kart, the more people you can knock around. I guess, if you want to know who the strongest one is, it would probably depend on your opinion. To me, it seems that Bowser is the strongest.
peach and daisy mach bike and funkey kong and dry bowser with bowser bike baby daisey with bullet bike baby luigi with magikruiser.
King Boo. No exceptions. Best with Bowser Bike.
The End
In my opinion, I think its toad but everyone has different opinions
Funky Kong with the Flame runner or Daisy with the Mach Bike.
There really isn't a "best" character to use. Use whichever character and kart combination you do your best with.
Rosalina and Sonic
Rob the Robot
the best character in Super Mario is cat Mario
Mario :)
Mario, sillybilly
MARIO
paratroopa
peach
Wario
Easy the best character is Luigi in the nostalgia
King Boo
I think that its Yoshi. He has quality karts, and everyone can use him as a character.
King K Rool and Funky