defenitely not 115, thats just my choice cause i dont really like that screamy stuff, frontline is the best song there, but there are allready a LOT of VERY good RSMV out there made by experienced players with a lot of spare time and who have done it before. Also, i suggest not doing solo i just think more people is cooler.
like i said frontline is good but theres a lot of rsmvs for it allready
good luck with it man