As far as the wood of a guitar is concerned, and what a guitar can do, all depends on the pickups it has, what amp you are playing through, what effects are used etc. Once you have so many things added to a guitar signal (clean), and especially for a genre like Metal, it doesn't really matter much what wood it is made of...Reason
1) The effects, amp etc would color the sound anyway.
2) In a loud environment, the subtle differences of wood can not be figured out, unless you think you have ears of a bat to figure out super subtle differences..
3) The acoustic quality of an electric guitar, in the sense, its resonance, sustain and how well the notes come out when played without it being plugged in is something that you never really hear when it is plugged into an amp or whatever....
So in short, a great guitar with all the wood you think is great for metal etc, plugged into a shitty amp or vice versa is no good.....There has to be a balance, and only YOU and YOUR EARS can tell what sounds good to YOU... So please take out the time, and spend it trying out many amps, guitars until you find the right one to YOUR EARS.
taking suggestions here about what guitars are good is a good idea, to get to know the ones that are available, but just try out all of the mentioned ones here...and also more....and then figure it out yourself.......You are not buying for anyone here, you are getting it for yourself. So get what you want, not what someone else thinks you should get.....
and personally i feel, you can get any tone/sound/genre of sound from a guitar + amp (Good tube amp or good solid state amp) combination, with some tweaks etc...
Guitars - Epiphone Les Paul Standard Plain Top, GB&A Strat, Yamaha C70
Amp - Laney Cub 10 (FOR SALE), Blackheart Little Giant Head, 1X12 Cab (DIY) w/ Eminence Governor Speaker
Pedals - Vox Satchurator, Boss ME-25, EHX LPB-1 - DIY, Marshall Plexi Pedal (DIY), TS-808 (DIY)
**Arya Pedals makes custom pedals just the way you need it, and for a price that does not break your bank**
**Reach out at http://www.facebook.com/AryaPedals or email - aryasridhar(at)gmail.com, or PM me on IGT.**