I haven't been able to really use laney amp,the jsx amp is sweet but from what i heard the laney has some very good metal leads so im interested in it.I mostly play prog metal and thrash metal(im in a thrash prog metal/.rock band)I want a similar tone John petrucci,Jeff loomis, Trivium,etc.Basically very thrashy for rhythm but epic for prog sounding leads
For those styles, I believe the JSX is a better choice, although a 5150 or something would be nice too.
Brigadier of the 7-string legion. 7>6

Fender Telecaster
Schecter Damien 7
Engl Fireball