Haven't we done three or four of these threads by now?
Most of those stations you list aren't really listenable in Buffalo, thanks to incursions from translators and the "RF haze" that hangs over much of the city itself from the high-power, low-height transmitters on the Rand Building and the tower behind channel 4. The only ones that are still easily listenable downtown are 91.1 (which is CJRT, not "CJZZ"), 94.1 (which is CBL-FM, not CBU-FM), 97.3, 98.1, 99.9 and sometimes 102.1 and 107.1 (which is CILQ, not CINQ).
It's hard to say how much audience any of them have these days, since the Arbitron ratings now show only the stations that pay for the service, and obviously Canadian stations aren't included. Anecdotally, 91.1 still has a decent niche audience because it provides a format otherwise unavailable in town. I don't think most Buffalo listeners find a reason to listen to any of the others, since they don't offer much that isn't already available on Buffalo radio.