I'd actually prefer Miami over a team like Chicago, Boston, or Orlando, cause Miami lacks SIZE, and size will be what ends us in the playoffs.
Miami gave us a lot of trouble earlier because they had a lot of athletic wing defenders who were able to double/triple team Amar'e, but still get back quick enough to close out on our shooters. Which pretty much forced us out of our game. Plus they denied the PnR better than most other teams we played.
Now that we have Melo/Amar'e, we're no longer as reliant on the 3-ball or the PnR.