I use an am a huge fan of open pattern camo such as Predator, Enigma, and ASAT. IMO you cannot match the effectiveness of these style patterns for hunting deer. Currently I use mostly Predator, but that is mostly because I have an easier time finding it in quality garments that are readily available than the others. Another good camoflage is the new Vertigo pattern by Mossy Oak and Scent Lok. This uses the same concept of the others of contrast to break up your pattern rather than a realistic image. Optifade is another new good pattern that has come out.

For fit of clothes I recommend something that is loose enough to be comfortable, but a form fitting cut that does not have excess material in the shoulders and arms. I always use an arm guard or compression sleeve while bowhunting to prevent my clothing from hitting my string. A lot of the bowhunter jackets that are available have the right cut for bowhunting and can be layered for late season use.

Hope this helps.