Yannick,
Just returned from Scottsdale where I played Raven at Verrado for the first time. I've played Talking Stick North several times in the past, and Talking Stick South, We-Ko-Pa and Sunridge Canyon once each.
Regarding Raven at Verrado, first off it is a great deal. As mentioned, 2 meals plus all day golf for under $150 (it was $150 for me last week of March but probably less when you're there). It was very uncrowded midweek and easy to get 36 in with an 8 am start and lunch in between. Golf/GCA-wise I'd say it is a decent course but not up to Talking Stick North. There are some very strong holes and some weak holes. Strong: #2, a short par 4 with a cape green--could have been even better if they'd introduced a redan effect to the greensite; #4, a long par 4 requiring two good shots, the par 4 #8, which has a semi-blind tee shot over a protruding bluff, and #13, a decent par 4 with a center bunker hazard. The best hole on the course is #14, a 300 yard uphill par 4 with a wonderful false front green. One of the best short par 4s I've seen anywhere. Weak: all the par 3s and par 5s. I just didn't find much challenge to them except for the greenside bunkering on the par 5 7th. Warning: if you're staying in Scottsdale there's a lot of traffic between you and the west sid eof town where Verrado is located.
Talking Stick North is a must play IMO. Excellent bunkering and variety. The par 5 2d ("Boundary"), which has been discussed at length on here, is a terrrific use of a fenceline hazard. I think Talking Stick South is very underrated GCA-wise and actually a more difficult golf course than TSN. Smaller, built up greens, clearly more "manufactured." I agree with Mike Hendren that it makes sense to play TSS just to see how the architects could create two vastly different courses out of flat, adjacent desert land.
I believe We-Ko-Pa is slightly better than Raven at Verrado, with stronger par 3s and some good cross-hazards, though Verrado's #14 is the best hole on either course. I don't care for the finishing hole on either course. I liked Sunridge Canyon and rank it a notch below We-Ko-Pa and on a par with Verrado; however, the downhill front nine and slog back up the canyon on the back nine was not too appealing to me. The best holes there are right at the turn (driveable 10th and long par 4 11th I believe). Not played it but from other comments I've heard pass on Eagle Mtn.
Just my 2 cents.