IMO, Raamat is the best. I've used Dynamat xtreme, Cascade, Partsexpress vinyl, and Raamat.
I just recently changed my front doors from cascade to Raamat...a noticeable difference. No more buzzes @ frequencies where the cascade allowed buzzing.
It's inexpensive, easy to apply, and it works great. The only drawback is the weight...maybe 25lbs for enough to do your front doors and trunk.
my $02.