Has any one done a thorough comparison between Graphics Mill and LeadTool's raster and vector imaging SDK's?

After a brief review, it appears to me that GM is better, but a coworker is pushing LeadTools pretty hard, hes even got one of thier sales people to come down on the price (his LT Raster+Vecor SDK is still a lot higher $$ than my proposed GM + PSD add on)

Can anyone provide a good breakdown? So far my biggest Pro for GM is the windows forms controls, as the LT librabry can pretty much match the GM lib function for function for what we are doing (with the unknown exception of being able to split up the various types of PSD layers as the GM PSD add on can, I'm not sure LT can match the complexity there)

Any links to such comparisons would be greatly appeciated.