I disagree. There is little you can do 141 you can't do 61. 141 vs 61 has nothing to do with number of planes available. Heck, I know many schools train under both and use the same planes. I think you're making a big school vs little school argument, not so much a 141 vs 61 one.
There are 141 schools that are larger than little FBO's, no doubt. You can live and breathe aviation at either, it's really up to you. I think flight training is about you, your CFI, and the airplane you rent. The way I see it, 141 is only an advantage if you have VA benes to burn.