3 speakers to consider.

I am partial to Revel...they have an insane amount of R&D resources behind their products...and are engineered using state of the art testing facilities...less familiar with Dynaudio....even less with Montana...good luck!

Without knowing what the rest of the system is, how can anybody even recommend a " favorite"?

They are all fine kit but each will sound very different when finally married up to the electronics and cables and listening environments.

Just because say , Choice #1 sounds good in one Guy's kit (and resulting Predictable biased personal opinion) it has nil assurance that it will sound equally good in the next. System synergy matters .... Big time .

Maybe the question should be altered to ask which sounds better with your preferred brand(s) of accompanying gear? Right now all you have is a muddled "pick 'em" based solely on heavily personal bias; and purely anecdotal opinion.

Update

I purchased a pair of Revel F52’s here on Audiogon at a great price. I have been listening to them for about a year and a half now.

With every upgrade I’ve made to my system they just keep sounding better and better. I really like the fact that you can adjust their sound with the controls on the back of the speakers. That along with the variety of sound adjustment options the HK990 offers helps to overcome some of the less than optimal production problems on certain recordings.

One thing I do know is that I rarely have to do any adjusting to a recording coming for Blue Note.

So as of now my system consists of

Harman Kardon HK990 intergrated

Revel F52 speakers

SVS PB12 NSD Sub

VPI Aries Scout with an Ortofon 2m Bronze mm cart

Herron VTPH 1mm phono preamp

Onkyo CDP DXC390

Belden BJC LC-1 interconnects

12 gauge, 87 strand, oxygen free copper speaker cables 

On to my next step in reaching my personal audio nirvana.