Pep has amazing track record of winning local leagues, then again, he has always had the richest/most talented squad available. Klopp on other hand has done amazing job twice already, by ending Bayern dominance in Germany and now completely steamrolling with Liverpool. I consider Klopps achievements higher. Pep has 1 big flaw, he is too stubborn and not flexible. His man management is also questionable, as he rather freezes the more temperamental guys out rather than trying to find middle ground.