Replying to Tight or loose

How many people like a tight fitting boot compared to a looser fitting boot. My boots cause my feet to go numb pretty quick but i also wear my ski boots 4.5 sizes smaller than my shoe. Does anyone else like riding park with an extremely tight fitting boot or do people prefer a bit of waggle room. Second, when buying boots, do you buy them to fit with a bit of work/punch or do you buy a boot to fit out of the box? Im asking because i got in a debate with a co-worker over the subject. I feel a tighter boot is better for park compared to something that "fits" but is not a super snug fit. What do you guys think/feel works best in a park atmosphere.