Yeah, if you're gonna omit SDOIT because of your personal opinion on it, sure.
Outside of DTF, I can see how 8vm could be more popular than SDoIT.
Yeah if you read what non-DT fans say about DT, 8VM is mentioned more often, in my estimation, than SDOIT. Nothing to do with my view on SDOIT, there's no reason at all to think that has anything to do with that. It's just the way it is. SDOIT is not an accessible album and has more of a cult-favorite status than a widely-regarded-classic status.
In my own estimation, in the music world at large, IAW and SFAM are the most recognized and praised, then
Awake in third, then a drop-off to 8VM 4th, then another drop-off to SDOIT and ToT, then everything else is mostly off the radar (not including TA, I think it's too early to say on that one, though I imagine it will end up off the radar), with an SC, an FII or an ADTOE getting the occasional mention.
To substantiate this a bit, look at RateYourMusic. IAW has a 3.74 average on 7,191 ratings (the number of ratings is important because it shows how many people even cared to rate the album). SFAM has a 3.75 average on 6,193 ratings.
Awake has a 3.67 average on 5,167 ratings. Then fourth place in terms of number of ratings is not SDOIT but
Octavarium, which has 4,221 ratings and a 3.20 average. Then ToT at 3.45 average on 4,108 ratings. SDOIT outperforms these two on average rating, where it has a 3.54, but it has 3,710 ratings. Obviously this is not an exact science, and it's only one site, but I think it strongly suggests that SDOIT is not nearly as popular as IAW or SFAM, or even
Awake—IAW has almost twice as many ratings as SDOIT!
SputnikMusic shows a similar trend, where IAW and SFAM have 2,636 and 2,760 ratings respectively, while SDOIT has 1,775. Interestingly, 8VM and ToT received more ratings than
Awake on this site, but
Awake does have the third-highest rating after IAW and SFAM. SDOIT comes in 4th in that metric, but 8th(!) in total votes received—which is a pattern totally consistent with a cult-favorite, which is exactly what it is. Again, this is far from an exact science, but it shows that what I'm saying I've observed is not stuff that I've just completely made up, but has some actual basis in the data provided by popular music-rating websites.