I wouldn't get the blends if your skiing mostly park and groomers. They have a lot of rocker which wouldn't grip too well on groomers, and are pretty wide for a park ski. From what I've heard the T-halls are decently stiff but are still a great ski. Domains are probably softer than the T-halls.
In order from most to least soft, I'd say blends, domains, T-halls.
If I had to choose one ski to use it would probably be the domains
also next time post in gear talk