Which of these two amps are better for a heavy, Killswitch type tone? A Laney TT50H or a Randall RH50T?

Also, which is more reliable?
Well i have no personal experience with Randal, but i once owned a Laney TT20. Whether it's near the same as the TT50h? But still, it didn't give me the tone i was after for heavier styles even with pedals. Also, after a week it broke down on me (Tubes i was told), so after a nice re-tubing sesh by the store i got it from, it broke down again. Kind of put me off Laney to be honest.