WIC makes quite a few valid points but I find pointless subjective arguments are fun though... especially on forums when you're bored at work. Otherwise it just turns into lists and everything just turns into a tediously sycophantic like-fest.
I agree that it is easy to confuse who we like with who we respect. There's a few people I respect by reputation but who bore me shitless (derrick carter, terry francis, craig richards, ritchie hawtin, adam beyer) and others I like despite not exactly being cutting edge (greg wilson, crazy p, chris coco, franco moriaghi, dj yoda)
One thing I notice on this forum though is that people tend to celebrate DJs like they're football teams or involved in a game of top trumps. I think people forget they are ultimately just skilled technicians manipulating other people's music. The actual producers get forgotten too often. Or worse, confused with the people playing the tracks out. I forget this myself at times, because I get wrapped up in sets and amazing nights I've had but they're not gods and certainly not worth x million...
That said, it takes a specific skillset to give people the night of their lives (ammo or no ammo) and I will instinctively revere any DJ who can blow my mind with the right music in the right order. Judging the mood is an artform and I've seen so many people over the years clear floors and not understand why.
It comes down to a combination of all the right ingredients that make a night go off - but you can have the best gear in the world but if the DJ doesn't reflect your mood, it's game over.
Which takes us back to the people I mentioned earlier - people I like AND respect. For me, the key thing during a peaktime set is 'drama', it doesn't matter what genre it is or who is playing it, I just want to hear sounds that make my spine tingle. That's why a lot of the guys I like are pretty eclectic - the only rule is that the track rocks.