what compression stuff sack would you all recommend?

I think one of the roll top sacks from MountainFitter would be a great choice. Perhaps you are looking for a true compression sack, but a roll top sack will still allow you to adjust the volume to whatever size you need without harmfully compressing your bag. The 12" x 20" size is just 1.05oz.

$19.95 is a great price for a large cuben sack:

http://www.mountainfitter.com/Paklight-Cuben-Fiber-CTF3-Drybags-p508.html

I wouldn't…
First it isn't a good idea to overly compress a synthetic sleeping bag .
Next when you do that you end up with some sort of ball/cylinder with hard to fill space around it.
Better just to put the sb in the bag it comes in at the bottom of your pack and let the rest of the gear compress it down to whatever shape is available.
Franco

I am from the Franco school of thought on this one. I put my bag inside a pack liner at the bottom and let the rest of the gear do the compressing.

It depends. I like something like the granite gear Airvent bags because they enable you to get more air out after you have triple or more rolled the dry bag closure by using your weight on the bag. Otherwise a drybag just acts like a balloon and can create a situation where the down item or whatever is expanding while you are still trying to roll it in. The other variable is the cinch body weight to get the air out and the lighter stuff works great. This all assumes you test the bags to see if they leak before getting into a situation. . GG is down to just a cord and a small lock. Systems with bigger heavier straps are easier on your hands but weigh more.

wait, I thought down bags were the ones you were not supposed to pack tight… so I shouldnt try and squeeze this synthetic bag as tight and small as I can get it? the thing is huge even compressed! haha

First of all, it comes with one.

There is compressing, and then there is COMPRESSING. I go with a roll-top silnylon bag and squeeze as much air out as possible, but that is far from what a compression bag will do. If you are really out of room and need one, take it easy— just because it can squeeze your bag down to a black hole doesn't mean you have to do that. Moderation is a good thing.

Winter camping usually demands a bigger pack, as your clothing gets bulkier and you are using thicker sleeping pads, etc. You don't see a lot of winter gear lists and I suspect that a lot of the summer uber-lightness goes down the drain with the extra winter goodies. Do the best you can.

hmm, good info and thoughts. thanks