So that's the question, let's start a nice discussion ^^

I myself enjoy mainly Decipher from Mark's era, I think it's a master piece!
And well, I love actual AF's era, I like all the experimentation and new sound they are getting with later albums!
It's clear that Mark's music it's about symphonic and orchestral stuff, the gothic metal stuff ^^, and now AF have followed a heavy/metal sound and even 80's music its a big part of their influences
I'm with this last stuff mostly! And I think it's cool Mark left AF because not only he formed Epica, but because now both parts can make the music they love and enjoy mostly
and to be honest, I wont like to hear a fourth Decipher in AF