1. Personal Preferance. Thats the main difference I see. I shoot 4-fletch 5.5" low Banna Cut. 'Cause I like it.
2. a bit less than 4 of 'em. This is traditional, man, shoot what works best for you!
3. Have seen a varitey of colors. I just color mine and my Bride's arrows they color "SHE LIKES".
4. Jerry Simmions Inteceptors, (hard to find, still looking for more), Black Diamond Eskimo, Wensel Woodsman (when I want a 3 blade...Thats all my Bride uses) Use 'em all for everything. Do like the WW's for BIG HOGS, but not worried about any of 'em.
Know this didn't help much...but what the heck, it good to be in the woods with a real bow in your hand!
Johnny/JAG