I'm from Australia, and last year was on the same International Delegate program that you guys seem to be on. Staying away from the Marriott (conference venue) can be a bit of a drag, as you need to find a cab back to the hotel after the off-site events (on Wednesday night) finish.
Tuesday and Wednesday AM are general sessions where everybody is in a big lecture presentation. Last year there were RIM speakers (Lazaridis and Balsillie) as well as guest speakers (one each day, and were good) and sponsors (IBM, HP & Cisco).
Afternoon and Thursday sessions are based on your choice...my advice is to vary the things you choose - last year I followed the BES Admin tech stream and got a lot of duplication in the message, so this year I'm going to mix it up and attend some of the third party presentations (analysts, vendors etc) as well as the RIM presenters.
Make sure you go to the Welcome drinks on Monday night, and check out all the stands at the expo - RIM and third party. Lots of give-aways here.
Tuesday night is the RIM Party, which was awesome last year. Don't miss that - everyone goes.
Be selective about what you do on the Wednesday night - given that someone lese is paying your fare, you'll probably feel obliged to attend their event. But if you get a choice, the carrier events are good if you can get an invite. The AT&T event is a good one by all accounts.
And finally, if you're a BES Admin, you might consider doing some hands-on training or completing certification exams whilst at WES. Exams are half price, so that's my plan.
The Hilton at Bonnet Creek looks very nice - perhaps even a step up from the Buena Vista Palace I stayed at last year courtesy of RIM. But all that matters here is the bed, as you'll be spending all your time away from the hotel. Last year the shuttle services were great - started at first light and continued until after the parties had shut down. The journey time this year will be about 15 minutes from hotel to conference....enough time to catch up on overnight emails from home
See you there.