We are driving to Baltimore this weekend to go to the Indians/Orioles game. We have reservations at the Hyatt Regency Baltimore and the Marriott Inner Harbor at Camden Yards. I have to cancel one reservation--both are about the same price $189. The Hyatt package includes Aquarium tickets that I don't think we are using.
Can anyone recommend one of these hotels over the other? I appreciate your help.

Hyatt is in the Inner Harbor and just a short walk to Camden Yards and is in the middle of restaurants and attractions. A better choice and if you have view of Harbor even better!

Marriott Inner Harbour is directly across the street from Camden Yards. You can see into the stadium from some of the higher floor rooms. Even thought they're only a few blocks apart, they Hyatt is in a better neighborhood. I'd vote for Hyatt.

The Hyatt hands down and if you have free aquarium tickets, I would use them because they are not cheap. Even if you just go for an hour or 2, you'll be glad that you did. The Hyatt is in a better location being so close to Harborplace.

The Hyatt Inner Harbor hands down. You can get a great view of the harbor and shopping is right next door at the mall.
Aloha!

Perhaps I'm losing it, but I stayed at the Marriott Inner Harbour a couple of years ago and we had to take a short bus ride to get to Camden Yard. I thought the location was great however - right next to the aquarium and the Inner Harbour. I've always preferred the service at Marriotts over Hyatts.

Snowrooster, it's possible you're referring to the Marriott Waterfront hotel, which is not the same as the Marriott Inner Harbor.