Killy or stratton pass?

I'm the president of the snow sports club at Skidmore college, and in the past we've promoted/gotten all east passes. We went to Killington most of the time, and were very satisfied with it, with occasional trips to Mt.Snow and other mountains.
Now that there is no more all east pass, we're trying to decide whether to stick with Killington, or go for the Stratton/Okemo/Sunapee pass.

Most of the southern VT resorts are 1.5-2 hours away, and they're the only decent mountains near my school.

I feel that killington offers the best variety of terrain out of these mountains, but stratton/okemo have better parks. Most of the people at skidmore are intermediate to advanced in ability, but I'd like to do more events/trips to get some beginners and first timers out.

Also, most of them AREN'T park riders like myself. So having a super duper awesome park but nothing else won't really fly.

Sunapee is a bit far for us to go to for a day trip, so it's out of consideration at this point.
The Stratton/Okemo flexibility sounds good, like you're getting more for your money. But based on our past years, we only really went to one mountain (Killy).

Pretty much, I am looking for the mountain with:
-best variety of terrain
-good learning program for noobs
-best park along with the rest of the mountain
-good lodging places for a weekend trip (we stayed at Killington last year, at the Sunrise condos)

There's always going to be people purchasing one or the other, and my heart is leaning towards Killy, but I want to see what info/recommendations are offered for stratton/okemo, because I haven't ridden there in a while.