NADAC has a ton of classes without weaves if I remember correctly. Tunnelers is all tunnels. Touch n Go is all contacts and tunnels, I think. I don't think Hoopers or Jumpers have weaves.
I've never run in NADAC but our club hosts a trial for them each year, so I've been to watch/volunteer. It always seems like a nice group of competitors, and I envy the amazing distance skills people train in that venue!
Touch-n-go: You will see contacts 3+ times (at least 1 dog walk/1 aframe, something multiple times). There are also tunnels and hoops. Hoops are just jumps with jump bars on the ground--the dog goes through, but there is no speed lost so the handler has to be that much more precise.
Tunnelers: A course of 14-17 tunnels. Average course time is 20-30 seconds. FAST! Lucy loves it.
Jumpers: Strictly jumps, occasionally a tunnel.
Chances: NADAC's distance challenge. You will see at least a 10 foot challenge in novice, up to 20-30 feet. Almost always a contact/tunnel discrimination at a distance. I cannot remember a time I ever saw weaves. The judge has always been fine with me ignoring the line entirely and running it like a regular course if it was too challenging for my dog.
There are weaves (3 sets) in weavers, obviously, and you will see 6 poles in novice standard.
The extreme games are still brand new, and I've never seen them offered at a trial except once last April. They are supposed to be encouraging speed and positive handling (you get points based on speed and accuracy, so going back to fix something ends up hurting you since it sucks time. The dogs LOVE it).
Basically, NADAC's philosophy is flowing courses that are logical to the dogs. You will not have trick jumps to pull dogs off, the awkward dog walk to tunnel flip, or sharp twisty sequences. That said, it isn't necessarily "easier" like a lot of people seem to think. They emphasize discriminations (you will almost ALWAYS see 1-2 on standard, touch n go, and chances, even at the novice level), distance (Sometimes the judge will set it up where you get a double Q if you do the course from behind a bonus line (up to 75 feet away from parts of the course), and speed (a lot of people give up on NADAC because they can't make the course times.
They are very old-dog friendly. You can enter as a novice veteran, giving you extra time and a lower jump height. You can further drop 4 inches to skilled or preferred (forget the name) just because on any aged dog. The jump heights are nice to begin with too.
No NADAC or TDDA here. Meredith in Maine plys TDAA.. I'll send her a link to this thread.. We play some CPE, though there is less and less here. No weaves in level 1 along with no teeter. Some games have no weaves in level 2 as well.