Swolenasty
New Head-Fier
I would say the 650 and the T90 for rock. 650 if you're into the dark, slow, laid back presentation with a nice bass kick and T90 if you're into the bright, zingy, full of energy presentation. 650 is more intimate with a smaller soundstage and T90 has a huge soundstage like you're at a rock concert. Both of these headphones are great for pop too but the T90 is better because the extra brightness helps give pop that energetic vibe. I think that hip hop sounds better on the 650 but the T90 is no slouch either but since it is a bright, revealing HP and a lot of hip hop songs are poorly mastered, the T90 will be very revealing of that. For trance, I'd give definite edge to the T90 although what really sounds great for trance is the T1 Gen 1. I really enjoy Infected Mushroom on the T1. I haven't heard the T5p but I expect it to sound similar to the T1 in that respect. Overall the T90 and the T1 Gen 1 are quite similar. The T90 has slightly more bass and is a good bit brighter with a greater sound stage because it is a fully open head phone. The T1 Gen 2 I haven't heard but from what I know it has more bass or similar bass to the T90 and is much less bright. What I heard from others who listen to trance is that the Gen 1 is better than the Gen 2 for trance. As for the other head phones you listed, I would not recommend the T70, HD 700, or the EL-8. The T70 is a treble cannon with almost no bass, pretty much good for just classical music. The HD700 has more bass than the T70 but still suffers from being overly bright, again pretty much just for classical/orchestral music. I haven't heard the El-8 but from what I have read online, the closed version is an abomination and the open is just all right. Don't know much about VB630 so can't comment on that one.
So your options are:
Sound isolation/Portability: T5p
Bright/Analytical: T1, T90
Dark/Melodic: HD 650
Some things to note is that the T5p and to a lesser extent the T90 don't require much if any amping. You can plug the T5p into your cell phone and you're good to go. T90 will require some extra juice but many portable amps will run it just fine. The T1 sounds significantly better with an amp and is a little picky in that respect, though I expect that to be less true for the Gen 2. The 650 is very amp dependent. The sky is the limit with the 650 or should I say your wallet is. The better your amp, the more performance you can squeeze out of the 650. Without an amp don't bother with the 650 as it sounds terrible.
All these headphones are very comfortable. The 650 is probably the most comfortable out of them because it has the least clamping force. Followed by the T90, the T1, and the the T5p. That's not to say the T5p is uncomfortable because it is very comfortable but because of its closed back nature it has more clamping force to provide isolation/prevent leakage. The T90 and the T1 are virtually identical in comfort but the T90 weighs slightly less so I'd give it the edge there. Certainly all of them are more comfortable than my Audeze LCDs and I don't even consider those to be uncomfortable.
I recommend you try them all out or buy them all and then return the ones you don't like if your store allows it. Good luck.
So your options are:
Sound isolation/Portability: T5p
Bright/Analytical: T1, T90
Dark/Melodic: HD 650
Some things to note is that the T5p and to a lesser extent the T90 don't require much if any amping. You can plug the T5p into your cell phone and you're good to go. T90 will require some extra juice but many portable amps will run it just fine. The T1 sounds significantly better with an amp and is a little picky in that respect, though I expect that to be less true for the Gen 2. The 650 is very amp dependent. The sky is the limit with the 650 or should I say your wallet is. The better your amp, the more performance you can squeeze out of the 650. Without an amp don't bother with the 650 as it sounds terrible.
All these headphones are very comfortable. The 650 is probably the most comfortable out of them because it has the least clamping force. Followed by the T90, the T1, and the the T5p. That's not to say the T5p is uncomfortable because it is very comfortable but because of its closed back nature it has more clamping force to provide isolation/prevent leakage. The T90 and the T1 are virtually identical in comfort but the T90 weighs slightly less so I'd give it the edge there. Certainly all of them are more comfortable than my Audeze LCDs and I don't even consider those to be uncomfortable.
I recommend you try them all out or buy them all and then return the ones you don't like if your store allows it. Good luck.