There was a thread on here a while back with a link to a review of the blitz suss, hks mushroom and the apexi powerflow (and a few other filters). IIRC the blitz suss made one more extra hp than the apexi but the apexi caned the rest on actual filtration. Apexi is best all round performer so that would be my reccomendation
The HKS mushroom performed poorly overall
edit: unfortunately the power enterprise was not reviewed but as mentioned above it is a similiar design to the apexi so potentially as good/better.
Also the apexi powerflow is not oil based so minimal maintenance required. i used to give it a blast with an air gun (not right up against it of course) every 2000km or so, seemed to do the trick just fine