I would say that silverstring in the 1.20 size is more crisp than alu. I was going between alu power flouro, alu power+ silverstring. I am using a prince speedport black+ it is hard to tame the power out of it.
Both of the alu strings worked for getting good control, but with the price+ the fact that they only played well for 3 hours or so was dissapointing. I also tried the big banger original which was real mushy, but it worked well for control+ it lasted longer than the alu.
It seemed like i was limited with only lower powered polys i could use in this racquet+ after a lot of experimenting i settled on the silverstring.
After using it for the last 4 months i have to say it is excellent. Great solid feel, but still comfortable, excellent spin+ power with control. Also it is the most crisp feeling string you can find. That is why i wonder when some say they dont think it is crisp, if it isnt i guess i have no idea what they mean by crisp.
But i do want to note that the 1.20 is more crisp+ better than the thicker gauge. Also i am using it at high tension, maybe at the lower tensions it isnt so crisp feeling.