They both had an awesome impact on the World. To deny them, call them names or even irrelevant as koweni puts it is laughable. They are very relevant to 3.7 billion Christians and Muslims, which is more than half the World's population last I checked.
OP - as a muslim myself (by name at least), I was raised to love and respect all prophets. My background knowledge with prophet Mohamed is a lot deeper though. I know more about his than Jesus'... due to that bias, I have to say Mohamed (PBUH). Though I admit, Jesus had the greater impact on people. That's just stupid to deny.
as a side rant --
I wish people could learn to stop flaming, offending other people's gods, beliefs and disbeliefs. It always has to come down to one side claiming superiority over the other with petty insults and attacks on beliefs.
Just respect people's opinions and beliefs ... don't go out of your way to offend people. That is all.
I am the black sheep 
"of course I'm crazy, but that doesn't mean I'm wrong."-Robert Anton Wilson
