Would really depend on my position, stack, if in tourney or cash and who i'm playing against. Would go back and forth depending on those factors. Sitting down cold and being on the button? Always take the pair.
10s every time. it does much better against ranges, even with multiple opponents than kq does. i'm sure there might be a very specific situation where kq might perform better but, in my random equity tests, 10s outperformed kq.
of course, thats only in all-in situations where the river is guaranteed. in situations where there is post flop betting, it could be a bit different. i think i still pick 10s over kq as i think they're much easier to play post flop. kq can get you into a lot of trouble on some flops, either by missing draws, being out kicked, etc.