I thought the title might get some attention!
That said, for you rock/metal guys out there, which DR strings do you prefer out of the following only (I have a nickel allergy so I can't/won't do 'em and the coated varieties sound terrible IMO):
Hi Beams
Lo Riders
Fat Beams
DDT
I only have experience with a Hi Beam B string and I'm wondering what everyone's thoughts are. I currently use a 135 gauge tuned to B flat for pick and finger style and it is good but there might be something better. Opinions?

you can imagine how happy i was. lol