Fleecy
Counting Sheep...
I've been on a ghost fighter rampage lately (Yu Yu Hakusho, Bleach, Shaman King). 
This is Lyserg as an Elemental Warrior (keep in mind he is the second strongest after Chocolove). Youko is at his greatest point that has been shown, which means he is considered S class or even S+ class.
Pascal said that Lyserg was the cleverest of the five, but in my opinion his intelligence does not compare to Youko's. Yet, while the issue of intelligence is clearly in Youko's favor, Lyserg definitely has an elemental edge; he possesses the most destructive spirit, the Spirit of Fire. This is obviously not good for Youko, who uses plants (albeit demonic, deadly, and powerful) as his primary source of fighting.
I'd say Youko and Lyserg have approximately equal speed (neither have really shown speed feats because their style of fighting doesn't center around it. And I'm not a big fan of the "scaling" thing, so please don't use it in the case of speed here).
Also, this is something I found interesting. I'm sure that Spirit Energy does not equal Furyoku, but they are measures of spirit. Even if their numerical values may be measured differently, I think it's intriguing that Lyserg and Youko actually have similar correlations in the concept of spirit power. This is just a theory, but since their energy levels were so close I wanted to include them in the speculation (but more spirit energy does not necessarily mean he would win the fight).
Youko Kurama: 152,000
Lyserg Diethel: 170,000
So... Who do you think will win?

This is Lyserg as an Elemental Warrior (keep in mind he is the second strongest after Chocolove). Youko is at his greatest point that has been shown, which means he is considered S class or even S+ class.
Pascal said that Lyserg was the cleverest of the five, but in my opinion his intelligence does not compare to Youko's. Yet, while the issue of intelligence is clearly in Youko's favor, Lyserg definitely has an elemental edge; he possesses the most destructive spirit, the Spirit of Fire. This is obviously not good for Youko, who uses plants (albeit demonic, deadly, and powerful) as his primary source of fighting.
I'd say Youko and Lyserg have approximately equal speed (neither have really shown speed feats because their style of fighting doesn't center around it. And I'm not a big fan of the "scaling" thing, so please don't use it in the case of speed here).
Also, this is something I found interesting. I'm sure that Spirit Energy does not equal Furyoku, but they are measures of spirit. Even if their numerical values may be measured differently, I think it's intriguing that Lyserg and Youko actually have similar correlations in the concept of spirit power. This is just a theory, but since their energy levels were so close I wanted to include them in the speculation (but more spirit energy does not necessarily mean he would win the fight).
Youko Kurama: 152,000
Lyserg Diethel: 170,000
So... Who do you think will win?