there are a lot of excellent GF humbuckers
the Mean 90 , vintage II, the Vintage extra hots, the power rails the crunchy rails are all good pickups I have used them all.
the mean 90's and vintage II are great for classic blues and rock tones for stuff like ZZ Top, the vintage extra hots are good for classic hard rock like Rush, AC DC, Sabbath
the power rails and crunchy rails are good for stuff like Alter Bridge Creed Metallica and other types of metal and hardcore genres.
but that is not to say that you have to use a certain style pickup for a certain genre of music
Just read the description page, Dave does a very good job of describing the tone characteristics of each his pickups. and down at the bottom of the page will indicate whether it is a neck position or bridge position pickup.
I have used just about every pickup GF sells and I can honestly say that I have not had one single complaint about any thing I have installed.
I am primarily a bass player and I love both the matched jazz pickups that are exact replacements for MIA Fender jazz bass guitars and the Music man Pro and Pro plus are both Awesome!