Well I'm obviously in the minority here with the ladies because I have to say that I actually prefer to do hand jobs for a number of reasons:

1. leaves my mouth free to talk dirty.

2. can watch the guy as he cums.

3. I am far more of a tactile person than an oral one.

For me watching a guy cum is about the ultimate turn on, for all of the reasons the ladies have already mentioned.

I would add though that for me, the distance I can get a guy to shoot it is more of a turn on than the amount of cum there is (after all, the distance it travels is reliant on the strength of the muscular contractons he has i.e. how powerful his orgasm is.) Although if I'm going to get covered in it, it's great to get covered in a LOT of it!

__________________
'Don't knock masturbation - it's sex with someone you love'

- Woody Allen