There isn't any basis for your opinion. Aquilani played months of good football, then cooled off and disappeared. Pepe played a couple matches of good football and disappeared.
Pepe did actually not disappear ! He was just not played anymore, so this is a difference to Aquilani how got played but still did not do anything noteworthy. We could compare stats and see that even while Pepe was played out of position 90% of the time he still out-scored and out-assisted aquaman until just before the winter break.
you biased opinion against pepe might not make you see that, but pepe is always involved and last action i remember from him is breaking through the defense on the left side and playing very nice and fast cross/pass to matri how volleyed it only inches past the goal.
so in 1257 minutes Pepe scored three times and assisted once (419 minutes per goal) while Aquaman did score twice and assits three times 1860 Minutes (930 minutes per goal) (50 % more time played). my biased opinion tells me that pepe actually does more defending work than aquaman, while being just as effective in the attacking sense of game. pretty weak for a "creative"/mega-through-ball-assist-aquilani. you gotta have in mind all the time, that pepe has no good left foot, so being played out of position on the left wing renders him more or less unable to go to the byline and cross
What the fuck did Pepe do exactly? Score a neat freekick the keeper misjudged?
apart from the assist and the goals he did play some very nice corner kicks and freekicks ... way better than the corner kicks taken by anyone
this season