i grow both roses, my frederic is 2 1/2 years old and i have 3 belindas, the oldest it at 8 years and the youngest is at 4 years..frederic has few thorns while belinda has the typical hyb.tea type thorns, the scent is stronger on frederic than belinda, frederic grows more upright and narrow for me, while belinda has a bit more of a spreading nature typical of a shrub rose, belinda has been a better bloomer, say 4 full flushes in a year (z7b) while frederic has only done the sporadic bloom (remember he is younger), frederics blooms are looser compare to belindas, she really does have an old fashion look....the reason i have 3 belindas, is that my front fence faces a main road in my town and she is one of the few roses that can take the dirt/pollution..she is a very tough lady ..with all this said, i am now going to suggest a personal method when i cant choose (most will yell at me), i buy most of my roses as Bands/Own Root, so i dig a nice big hole about 18"/24" in diameter and plant two roses in the same hole, they have about 6 to 10 inches in between each other and then i wait....usually they are fine, like they "grew up " together, they can share a smaller space.... should note i do not spray anything, and only feed soil with organic methods thus all my roses get a bit of black spot, both of these roses bounce back and neither have ever dropped all their leaves or looked like ugly sticks...hope some of this helps