Of the two, I'd lean toward Modern Essentials for the type of sound I prefer.  I play mostly 80s Metallica type stuff, so that's the general tone I'm after.  I enjoy the Soldano and Frideman presets mainly, the others don't do a lot for me. 
 
	 
 
	For reference, in my Glenn presets, I almost always gravitate toward the Splawn S Comp from his High Gain collection.  That one preset basically made the Helix really work for me.