Opinion based on personal experience....Las Vegas Hotels?

We’re thinking of going to Vegas in February and trying to decide amongst 5 hotels right in the center of the strip. Trip packages for 3 nights vary by only $125 from the cheapest to the most expensive, just wondering what you would do. The five hotels are Treasure Island, Harrah’s, The Mirage, Caesar’s Palace and the Venetian. From what I can find it seems like the Venetian might be the nicest, but I personally have never stayed in any of these hotels, so if you have an experienced opinion, I’d welcome it!