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.