I don't trailer and prefer to carry what I need on the bike - it makes packing much more difficult.
I recently returned from a 45 day 14000 mile ride from Florida to Glacier, Denver to the Grand Canyon, Denver to Sturgis and the Badlands, picked up 16 National Park Stamps, and then home. Temps varied from 34F to 108F, rain lasted a week or so on the Grand Canyon leg, and I state/national park camped, renegade camped, hit a KOA or two.
I use a Sierra Designs Tengu 2 2-man tent, a Big Agnes 15F down bag, Big Agnes 25"x78"x2.5" insulated air mattress to get comfy with at night. I use a footprint under the tent to protect the waterproof fabric bottom. The down bag compressed far better than the poly/synthetic ones I found. Down bags are more expensive and if they get wet are a bear to dry out (which is why I carried mine in a waterproof bag inside my left panner). I had some misgivings about an inflatable air pad but it never deflated despite my 6' 220# mass.
The Tengu 2 compresses to about 7"x18" with poles, pegs, and footprint. The BA air mattress compresses to about 6"x10". I've been in some serious deluges (Sturgis 2008 where it blew 50mph+ and rained like water from a fire hose) and the tent never broke or leaked water.
I carried some of the MSR line: Whisperlite stove, BlackLite cook kit, 33oz fuel bottles, MSR coffee filter, and 6L dromedary. The only meal I didn't cook was lunch. The gear performed great. I also had a 450ml coffee cup, lexan cutlery, and a couple of collapsible bowls for meals.
I shopped every couple of days and ended up buying Lipton noodle mix; Uncle Ben's rice mixes, canned tuna, roast beef, and chicken; power bars, and ingredients for gorp. I also bought powdered Gatoraide so I could replenish my electrolytes at night (I mixed it about half of the directions and had good results).
The only gear exposed to the elements was the tent, camera tripod and gear bag. The waterproof REI gear bag contained colored bags so I could keep track of food (green), cooking gear (red), grooming gear (blue) and clothes (2 waterproof bags white in color that doubled as a pillow and a way to know dirty from clean riding gear). The inner bags never got wet despite some horrendous rain storms and high winds. The bag gear bag also doubled as a backrest. I bungeed the external stuff using some 1"x 42" adjustable bungee cords that lasted the entire time.
A number of the campsites were "primitive"; no running water and a dump toilet so having the ability to tote 8L of water to these sites was a nice feature. Some of the best sites were the furthest from the potable water and the dromedary and CamelBak made that pleasant too. I carried a .75L water bottle and a 24oz 2PN container for those late night urges.
I'm sure I could have gone cheaper but I decided that I was more interested in durability, size, and weight. In almost all my decisions I chose the smallest and lightest as long as the ratings were high. None of my gear broke.
Coupla tips, fwiw:
I carried 2 lengths of parachute cord (the good green stuff) so that I could hang up wet gear or tie the food bad out of reach of the critters.
I wore synthetic underwear exclusively. It washed easily and was usually dry the next morning.
I carried way too much clothing. All I really needed was 1pr. convertible pants, 2 sets underwear, sweatshirt, hat, sneakers, flipflops, and full riding gear. Gear that got washed but didn't dry out by the time I left got bungeed to the gear bag and was usually dry by morning.
I took 2 aspirin each morning after realizing that I'm not as limber as I used to be.
I was amazed how dehydrated I got regardless of temperature. I carried a CamelBak 3L and drank from it throughout the day. At the noon break I'd refill it with ice and water and was good to go for the afternoon. I tried the insulated mug and thermos with hose but the water got very warm and I found myself spitting out the warm water. The CamelBak has an insulated drinking hose and the water stayed much cooler.
I brought a couple of books to read at bedtime. The Black Diamond headlight has a brightness adjustment and I found that on low it was plenty bright. The unit uses 3 AAA batteries and I never came close to replacing the batteries.