Presidential pardons are corrupt by definition. They transgress the rule of law and equality before it. If you think someone needs a presidential pardon, just back up and think "which law is horrible and unjust and must be reformed." If not the law maybe the courts. Pardon at best is a fig leaf over a gaping wound. At worst, well pick them out yourself - the best you can say about it is that it looks really, really b…
Of course, pardons are misusable. I would support, for example, disallowing presidential pardons in the last year of a presidential term, so that Presidents can't cut and run from the political consequences of their last minute pardons. That could cut down on egregious abuses like Clinton's.