As said previously it all depends on the situation, but in general I'd rather have TT, specially in bounty tournaments. Both hands have 24 combinations that dominate them, but KQ usually has an edge because it will more often have an extra out. I preffer TT because it has a bigger edge on hands that can be agressive preflop like suited aces, lower pocket pairs and even sime suited connectors. Hands that are flipping will usually be TAs + so I think that in almost all stack sizes a shove with TT will be more profitable than w KQ.