The pardons that GWB has issued the last six years are to people that have served their time and wish to clear their names. He has commuted a couple of sentences for conspiracy in drug related cases, but only after the people have served long terms.
http://en.wikipedia.org/wiki/List_of_people_pardoned_by_George_W._Bush
Their are specific guidelines that the President follows on pardon requests.
http://usgovinfo.about.com/blprespardons.htm
Scooter Libby hasn't even been convicted of anything to pardon him for.
After having seen Clinton pardon cronies and rascals, you should not expect this President to pardon who he feels like pardoning.