I have both, both are beautiful. Pope John Paul II has larger blooms and is extremely fragrant. Probably will win the James Alexander Gamble Award when it is eligible. Moondance, descended from Iceberg, has smaller blooms, but more blooms than PJP II, but is less fragrant than PJP II (but more fragrant than Iceberg). I've heard advice to plant rose bushes in threes, which would make the visual statement perhaps more powerful with PJP II.

Very pretty! You'll like it, Moondance is a lovely rose.

If you aren't worried about disease, get Fabulous. It is one of my favorites, althought gets BS in my yard (I do spray). It does tend to bloom in flushes, but when it does, it is, well, Fabulous! I do also have Moondance and so far it's a smaller bush. Plus the blooms have more of a yellow/cream hint while Fabulous is pure white. Heres a pic of my Fabulous in a spring flush:

I have Moondance and live in Arizona where the temps reach 125F in the summer. I love this rose it is always in bloom with tons of flowers. The summers are so hot here no rose does very well until it cools down. In the summer the blooms are small and fry in the hot sun but in our mild winters the roses do so well. I never keep the blooms on the plant long enough to know how they do LOL!!! Moondance is a good rose for cutting I get a huge bouquet just from moondance alone. I think as it gets established you will like it more, give it a year or so to let it get settled. I am very happy with my Moondance as far as long lasting blooms on the plant, I really never noticed. I have 5 blooms on it now and it is a fresh new flush so I will watch them and count how many days they last and let you know. Carrie