This is 90% dependant on personal taste. There are hundreds of possibilities to arrange that. But let's say, if I was going to jail and was only allowed 1 80min CD to bring along, and I'd have to fit my favourite COB songs in it.. well I'd have to give it some thinking. You can fit so many songs in 80 minutes. This thread would be interesting if you said Pick 9 COB songs (a COB album is traditionally 9 tracks) with you to prison for a few years sentence.
So, if I was going to jail and could take 9 COB songs with me, which ones would they be? Hmm..
Silent Night, Bodom Night
Bed Of Razors
Downfall
Follow the Reaper
Everytime I Die
Mask Of Sanity
Kissing the Shadows
Hellhounds
One Day You Will Cry
The older material has more feeling to it and would be spiritually more nice to listen to over and over and over again.