Lots of interesting and, err, different views in this thread.
First, 8 and 16 ohm sound different. In case of V30 the 8 ohm has the more modern sound, the 16 ohm is more Michael Schenker/AC-DC.
Second, the cab makes just as much difference as the speaker. I dare say, maybe even more. I'm therefore only moderately surprised that views on speakers often differ quite a lot.
Third, I wouldn't worry too much about choosing the different speaker, rather get one that doesn't color your sound tremendously. Speakers is a lot just another EQ slapped on your sound (crucify me for that statement if you want). It's at the end of the signal chain, after all, so all the other components have already imparted their stamp on your sound. Yes, they can be a bit different, but I found that 90% of the time it's totally in the amp's EQ area.
Fourth, all the better speakers mentioned here would do. V30, Governor, Legend V12, Black Powder and Cannabis Rex are the ones I've tried. I'd recommend the first two, as yiou can always scoop some mids, but it's easier to scoop them than add them.