I think you'll have a great time on either line. You might keep in mind, that in general, the longer the cruise, the older the crowd. Princess is a great line too, and IMO the food is a bit better. Entertainment is better on RCL, and the crowd a bit younger, but having said that, once again, you won't go wrong with either.
We too, formally used a particular agent, but have started shopping for the best price. Now we've started using, and telling all our friends about CruiseCompete. It's the greatest thing going. Let all the agents do the work, and you sit back and watch the great prices roll in, then select the one you like best. How can you beat it?????
Have a great time, and we'll;
See you aboard,