The closest few would be Tahiti Village, then Cancun, then Worldmark on Las Vegas Blvd. But you didn't mention any of those, so I'll go on what you've said here and previously.
I *always* recommend Grandview for folks who don't need to be in the middle of "The Strip" and have teen or 'tween children to entertain. The South Point Casino is right next door, and they have a big multiplex theater, and bowling as well as a resonably priced buffet and coffee shop. Don't know who is playing in their showroom (adults only) but the tickets are always reasonable, too.
If you need space for others, they could also stay at South Point if they don't need condos. The rooms there are very nice and are not real expensive.
If I had to choose between Grand Desert and Grandview in this situation I'd choose Grandview because of the walking close amenities of South Point.
Oh, one more thing. There are tons of restaurants and fast food type places in front of the Outlet Mall at Las Vegas & Warm Springs. Try Raising Cane's if you like Chicken Fingers. Definitely a fast food place, but the chicken and sauce are something special, and its all cooked to order. Know, though, that all they serve is chicken fingers, their own (great) sauce, Texas toast, fries, coleslaw, and sodas.
Fern
Thanks everyone. All of the places mentioned are up for consideration. Price is important though and so far, I can only find an exchange into Grandview -- which is good because I can get her an exchange and others can book rooms at a reasonable price. I'd like to get more feedback on the Grandview from those who have been. The tournament is being held at:
All-American Sport Park Incorporated
6730 Las Vegas Blvd S
Las Vegas, NV 89119
It looks like the Wyndham might be closer -- but from the Grandview, it looks like a pretty straight shot (although further).
Thanks so much to all
Debi