re: Poker & MTT help!
In the early stages I like to see flops for cheap, as you generally have 100 - 150 bb's. When people start raising and 3-betting that's when I fold (unless, ofc, AA, KK, AK etc).
Middle stage I generally only play strong hands, high suited connectors, mid pairs, again I like to see the flop if it's cheap. This also depends on my stack too, if I have less than 50bb then I play a bit tighter.
Late stage is where I loosen up a bit, and play aggressively against the short stacks. Be careful of those who cover you chip wise, a single wrong decision can see you bust.