[JDMcNugent7]

I think the very best advice is to try to adapt to the way the table is playing and play a strategy that will work best against that table. If they are tight get in there and pick up small pots with dead money, if they are loose tighten up and make them pay when u hit a big hand.

I use both all the time. Generally, if the tournament has ALOT of entrants(which decreases your chance of winning it), I'll loosen up some and take calculated chances early, limping in multiway pots looking to flop monsters and playing drawing hands. If you want to play this way you have to be sure you are a good postflop player tho and remember not too get too caught up in any one hand. If this doesnt work and I can't hit anything I stop playing this way and tighten up once I lose about 1/5h of my stack.
In smaller tournies I generally start out pretty tight, not looking to force any pots and increase in aggressiveness as the higher blinds and antes come into play.