For me i reckon its a close call between ben sims, i aint seen him since like 2000.but i remember him doing crazy stuff!
and
Dave Clarke Seen him like 10 times only time i didnt enjoy it to the max was creamfields...not his fault they turned the rig right down!

the best i have seen over the last year has to be Dave the Drummer in coalville he was avit with every mix!