My current cabs are as follows: old '80's Peavey 2X10 cab with Hartke aluminum cone speakers, an Ampeg 410 HLF, and an Ampeg 810E. I have had various Fenders and others in the past. I used to really dig the SWR's as well.
My opinions using the same SVT-7 Pro head through all of them: the Hartke speakers in my Peavey cab sound nice, but are kind of nasal sounding to me or a little thinner than I'd like when I push them.
My 410 HLF is fine, but a touch dark and maybe a little less tight than I'd like. It is weird to move because I can pick it up and put in my back seat of my truck, but it is really awkward to do so and rolling it around, you have to kind of bend over a little.
My 810E is the most glorious thing I've ever played through. Tight, loud, deep, punchy, clear, whatever. Yes, all the way down to low B if I'm playing a 5. I LOVE this cab so much better than any alternative I've had the pleasure of using over the years. That said, it's 160 lbs. Does roll around easier than the 410 because it's more of a natural spot to drive from, but it is hard to get in the back of my truck by myself. But the tone! Oh my goodness I love this thing.
I've heard great things about the lighter newer designs like subway 1-15 or 210 or 410 etc and would like to try that out sometime for comparison, but I have no experience with them.