I find it really hard to compare guitarist like this. Its ok if somebody asks me to compare two of my friends but to compare great guitarist like this.. well i can never make a clear decision on who is better.
At the moment i would have to say Alei Laiho is my favourite because lately i have really got into children of bodom and love all their riffs and solo's and want to form a band that plays really similar music to them :)
By virtue of their electrical properties, tubes generate a special waveform when they're saturated, which is why tube engineering has tremendous tonal advantages over solid state or DSP solutions, particularly for crunch and lead sounds. Tubes enter the saturation zone gradually or softly, which lends tube-driven tone its trademark yet totally unique character.