Re: What bow sight??
first off what is the budget for this purchase...it will have a big impact on what sights you can look at.
cobra sidewinder that was suggested.......about half the people I've spoken to love them and claim them to be rock solid...the other half couldn't get them to stay in one place and found them to be quite fragile....50/50 split....something to think about
Copper john....the basic 5 pin hunter with small pins is a good rugged basic sight for a good price.
Trophy ridge....many reports that is quite fragile.
Cobra....again the basic 5 pin sight is generally pretty durable, I hunted with one for years on a pretty snakey bow and never had it move on me.
IMO the best all around pin sight on the market for the money right now is the spott hogg (whatever model you can afford). They are heavy duty, rock solid, never move and each pin is adjustable side to side and up and down individually.
Most of these can be had with a sight light if your worried about seeing pins at the last minute. Also your question about levels....yes they are important for hunting if you plan on shooting on sidehills etc because the bow still needs to be vertical or the arrow will drift, many people shooting on a side hill will hit towards the downhill side of where they are aiming because they tend to "square up" to the slope and end up with what amouts to a canted bow, level eliminates that problem.
as always...just my opinion
Chris
"Do not go where the path may lead,
go instead where there is no path and leave a trail."
Emerson