Couldn't agree more! It's vital.
Yep, me too. Although as far as my DJing goes (well went) it was always music first, mixing second.
I used to work out mixes in small sections (maybe 3 or 4 records) and then mix and match those sections as needed, luckily I also had the ability to improvise if the crowd seemed more receptive to something I played in particular.
I always thought great music was most important, it does add an extra dimension if the DJ can do something exciting with them.
Anyway, back to the original question, obviously it depends on what sort of night it is, what part of the night, but I'd always start with guaranteed dance floor bombs to announce my arrival and get everyone on the floor....
Jimmy Castor - It's just begun - Mighty Ryders - Evil Vibrations - Locksmith - Far Beyond
The northern soul fans might be heading for the doors though!