bear in mind my "style" is a little spartan and I usually put in long mile days, for trips in the 3-7 day range, I like something with 45-50-ish liters and lightweight, the Osprey Hornet, Osprey Exos, ULA Ohm all fit the bill
20 degree bag of choice for me is the Marmot Helium, pad of choice for shoulder season is the neo air w/ a thin (1/4") ccf pad underneath- puts the r value right around 3.5 (2.5 for the neo and 1 for the 1/4" pad) which is just about right (foe me anyways

) for temps into the 20's
shelter choice is a MLD Duomid- lightweight, handles wind, rain and snow- uses trekking poles as part of it's setup,
very roomy for one- fits two comfortably enough
shoulder season I usually forego my summer stove (4dog wood stove) and go w/ a canister stove just for the ease (days get shorter in Sept/Oct)- snowpeak giga, solo I use a 700 ml pot, for two a 900 ml pot- the stove, canister, utensil(s), small towel, lighter- all nest in the pot
I like platypus water bottles (light AND tough), varies on which ones and how many on duration and frequency of water
just went to a Steripen last year for water treatment and don't see me changing, usually carry 1/2 dozen micropur tabs as a backup
carry a lightweight bear bag setup, that also holds my food in the pack
along w/ the usual suspects- lightweight knife, redundant firestarters, whistle, headlamp, sunglasses, sunscreen, map, compass, hygiene items, first aid kit, repair kit, camera
clothing carried- wool beanie, wool gloves, down jacket (warmer than I'd carry in the summer), base layer bottom, windshirt, rain gear, pair of extra socks
I don't carry spare clothing (except socks), on trips that last a little longer I'll wash worn items if need be
clothing worn- softshell pants, long sleeve base layer, socks, felt hat, trail runners
puts my base weight (excluding food/water) just a little over 10 lbs, I figure ~ 1.5 # food/day and usually am toting ~ 1.5 liters of water, so loaded up for a five day trip my starting weight is roughly 22 lbs- with the weight dropping each day
