Got back from Vegas in early December after staying 10 nights, so feel qualified to offer some advice!
If the price is right, go for the Mirage. Great location for Venetian and Caesars and decent refurbished rooms. Also, THE most comfortable bed I've ever slept in (and I've slept in a few

).
You can only book for 14 nights on their website, so give their reservations team a call instead and negotiate with them!
In terms of places to eat, would highly recommend Hugo's Cellar at the Four Queens (downtown), Grand Lux at Venetian and Palazzo and Cheesecake Factory in Caesars shopping forum.
Hope you have a fab time!