PS: Rank 6 (Very Good)
PT: Rank 5 (Good)
SS: Rank 7 (Excellent)
ST: Rank 5 (Good)
Overall Rating Limit: 350 (Very Good)
Movepool Limits: 75 Total / 35 VGM
My case for these are as follows.PT: Rank 5 (Good)
SS: Rank 7 (Excellent)
ST: Rank 5 (Good)
Overall Rating Limit: 350 (Very Good)
Movepool Limits: 75 Total / 35 VGM
Physical Sweepiness
This CAP needs a modest, but not seriously over the top physical sweepiness. It needs to be 'powerful enough', with a nice mesh of 'good enough' Speed in order to actually put its typing to much use in offensively supporting Togekiss. A lot of people are pretending that CAP11 should be slow so that it can benefit from Thunder Wave support better, but we need to keep in mind that our CAP does not have an incredibly amazing defensive typing, it has an incredible offensive typing. We need to complement that with stats that make sense alongside it. I, however, don't think that our CAP needs to be that amazing at physical sweeping, just being 'good enough' at it that it can scare Blissey and a lot of specially bulky Pokemon away with the threat of STAB Close Combat or Crunch (or whatever we give it).
Physical Tankiness
It needs to be able to take hits remotely well. This doesn't mean that it should be a wall by any means, but it needs to avoid being OHKOed and 2HKOed by certain attacks such as Choice Scarf Tyranitar's Stone Edge (Despite resisting it, it's powerful). There isn't much really to say here; we can all agree that he needs to be able to take a hit or two before going down, but not overdo it.
Special Sweepiness
Fortunately, a lot of others seem to agree with me here, so it's not like there's some fierce competition here. CAP11 should focus on being a special attacker. With STAB Fighting-type attacks and a modest Physical Sweepiness to scare off Blissey and Snorlax, he can focus on special attacks to really do some damage. Note that I am suggesting a limit of Rank 7 here. For comparison, Gengar has a Rank 9 Special Sweepiness, but much lower PS/PT/ST values than I am suggesting. I envision this CAP being slightly akin to Gengar, but less dramatic. This special attack stat also puts CAP11 in a good power seat for being Baton Passed Nasty Plot from Togekiss as an amusing gimmick.
Special Tankiness
The same as Physical Tankiness. Whatever PS is, this should be the same. Why? Because there are equally as many special attacks, such as Zapdos's uninvested Thunderbolt, that CAP11 really wants to avoid being 2HKOed by. This is the cusp for the survival of such attacks, but I don't think CAP11 should be too defensive (or even nearly as specially bulky as Togekiss is, for comparison), otherwise it doesn't particularly need to switch out of some of the things that should threaten it.
Total Overall BSR / Movepool Limit
We want a strong CAP, we don't want a broken one. 350 is a reasonable limit that allows us a lot of flexibility, while it also enables us 35 VGMs in our movepool. I think we're going to be giving CAP11 a sufficient amount of both physical and special moves, and in order to afford this we really need around 35 VGMs.