Happy to discuss any of these bad boys! All but the VaporGenie see regular use. I also got an old MFLB stashed aways somewhere that I bring out maybe once a year or so for a sesh but I forgot to include it in the pic and can't be arsed to take another one rn.
If you mean the back row, that's the BAKx by lamart on the left and the herborizer to the right. My two absolute favourites when it comes to fast extraction!
Right now the BAKx, but that's also my latest acquisition. VaporGenie never gets used, Lotus not a whole lot but increasing lately, everything else sees pretty regular use. Solo 2 a lot less since the BAK is here, but I think after my honeymoon phase it'll make its way back into the regular rotation for couch movie situations and such.
V3 wins for on the go use. Its form factor is close enough to an e-cig that nobody gives me a second look and I've even used it in very crowded places without issue. It extracts a bit faster, has a replaceable battery, is relatively easy to clean and has a sturdy, high class feel to it that you wouldn't expect from a budget device.
That said, the solo 2 easily blows it out of the water in terms of flavour and smoothness of the vapor. It also extracts a bit more thoroughly. I wouldn't pick up the V3 over it at home on the couch. A bowl takes a bit more time (with my use about 5 min for the V3 vs 10 minutes for the solo 2). It's even easier to clean and the battery capacity is massive. I've used mine almost daily for about 4 years, only since I got the BAK it's getting a bit less use and a charge still lasts for 10+ bowls.
Ultimately it's a question of your use case, if you wanna bring it with you and use it out and about a lot, go V3, otherwise solo 2.
Tbh I've only used it a handful of times. It's a very similar ritual as the lotus but not quite as tasty. Extracts very fast and well, but I'm not a fan of direct draw butane vapes in general. It's the only vape I kinda regret buying, I should put it up for sale again (I tried shortly after I bought it but there was no interest then).