Entrope offers some very good advice and brings out a very interesting point, our hobby is very subjective.
I have to laugh about EL34 being light on bass and rolled off on the high's. This where it starts getting complicated; not all tubes are created equally. I use New Old Stock (NOS) Mullard tubes from the 1960s & 70s. They have plenty of bass control and impact as well as crisp highs (in my amps), but they cost more than my amps. Having used 6550, KT88, KT90s (in various amps) and keep coming back to the Mullards.