Wtf? Old Ensiferum wasn't with Petri, and old Ensiferum is MUUUCH better than anything Petri has ever touched. Jari > Petri X 321483248392483924
Also Norther has sucked for a good long time now.
Norther isn't that good, at all
Their are mediocre at best, and the last album of theirs I listend to, 'Till Death Unites Us, had some of the gayest lyrics I've ever heard. Omen was pure shit, and so was that song "fuck you"...The teen angst was just exploding out of my car stereo on that one. I didn't give their latest release a proper listen, only heard it once or twice, didn't like it but can't remeber my specific reasons.
Basically, Petri's voice is pretty shit (although Its personally never bothered me, there are WAY better growlers), and I can't think of one solo hes done that was mind-blowing in any way. He's dull, and looks kind of like a crack addict with REALLY nice hair....
Anyway "im sure if you like bodom you like norther", is just another way of saying "I'm new to metal, so anything with a synth and sub-par 'growling' is pretty much the same." Their styles are similar, but at least Bodom used to have serious talent. Norther was just a Bodom-rip off, and have been their entire career. Petri was LUCKY to get out with Ensiferum.
That all being said. Mirror of Madness is a pretty good album.
P.S. I've also been told by many people Petri is a massive cunt.