Wisconsin fan here. Don't take anything here as a slight as it is not meant to be. I don't know anything about your team as I haven't watched them enough so I wont pretend to. Just looking forward to the match up. I think it is great that TCU will get the chance to prove they are as good as the polls say. TCU will definitely get the chance playing UW. I am a big college football fan and of course a big UW fan but I try not to let it sway my opinion. With that said, I will give you my opinion on UW.
I think they match up with the best running teams in college football the last 3-4 years. They have a sure fire 1st round LT (Carimi) who is the type of LT you could see playing in the NFL for 10-12 years and going to a Pro bowl or two. Think Joe Thomas like (but not quite as good) Their guard on the left side (Moffitt) should also get drafted high, even though guards generally don't go that high. Probably 2-3rd rounder. The rest of the line is very solid with a couple 3-6 round NFL draft picks. Wisconsin linemen, despite being humongous, actually pull extremely well, especially left, where they are almost impossible to stop consistently.
UW has three backs. All can be fantastic on any given day. John Clay is the headliner and Doak Walker finalist. A lot of people who follow UW think he may be the third best back on UW's roster right now. Montee Ball was a third stringer at the beginning of the year who was a high recruit but wasn't doing much. He was sort of written off and was third string and hardly played. Most were thinking he might transfer and it wouldn't be a big deal. We were all dead wrong. He has played in about 6 games and now leads college football in rushing touchdowns. A remarkable turnaround. 2nd string is James White, who was fantastic all season with highlight type runs with a few true freshman mistakes. Would probably start for 9 out of the 11 teams in the big ten right now. John Clay is big, most people think too big. Had off season ankle surgery and has been getting ankle tackled all year long. Needs the 5 weeks to get healthy, but probably wont be truly healthy to next year. All three are fantastic options and I would be surprised if White and Ball don't make 1st team all conference at some point in their UW career.
At Qb they have a very solid 5th year senior. He is top 5 in the country in completion percentage. A perfect complement to UW's team. He has a couple weaknesses. He doesn't slide, and although that hasn't hurt yet, I cant believe he hasn't been knocked out of a game in two years. The second is he has trouble throwing the far side out route. Seems like he leaves one a game out there waiting to turn into a pick six. It has happened at 2-4 times in the last couple years with a few that should have been.
Receivers are experienced but nothing spectacular. Toon could be a 2-3 round draft pick if he comes back and has a good senior year. Has the talent but hasn't put up the fantastic numbers as expected. The other receivers are good but "just guys".
UW is loaded at tight end. Kendricks is an absolute beast and one of the reasons the running game is so good. Probably an early 2nd round pick. Hybrid tight end that can really stretch the defenses. His backups will be good in the future, but are "just guys" now.
Punter and field goal kickers are both solid but not spectacular.
Defense is solid with a bend but don't break philosophy. The defense isn't nearly as good as the offense, although still solid. Don't really feel like giving a breakdown as what I posted above will probably be ripped anyway by some posters.
The one thing that I can say is that this is a completely different team than the one early in the season. They were a 8-4 team early on, hence the loss to MSU and close game with ASU. They are a 12-0 team type RIGHT NOW. I wish we could play the game next week. I have watched UW play for the last 20 years and I have never seen them play close to the level they are now and would put them up against anybody next week even money. Unfortunately, 5 weeks is a long time to be off. Hopefully for UW's sake they can keep it up. I doubt they will be able to as it is almost impossible to play as well as they have been for the last 2-3 weeks. Even against weak opponents, they were just playing at a different level, especially running the ball. Should be a great game.
As I mentioned earlier, I haven't watched TCU. Either way, I expect UW will run the ball for big yards. I just cant see ANY team in college football stopping them from running the ball now. Whether or not that will be enough for a victory remains to be seen and depends on what TCU can do on offense or if they can create a turnover or two.
Again, this is not a post to start things with the TCU fan base, just my opinion on UW and what their strong points are.