I would argue that private equity is much worse on fees than hedge funds. Among other offenses, they're able to charge fees to both portfolio companies and investors. The investors usually get a credit for the fees paid by portfolio companies, but it's not a 100% offset.
To an outside observer, this seems to buy you performance that isn't too different from exposure to infrequently marked leveraged standard risk premia.
How much do you think Ackman lost in personal money on Valeant? You don't think it's much more than the performance fees that he earned from it?
* 78% of funds did not return enough to justify investment, given the risks and long lock-up. * The average VC fund fails to return investor capital after fees.
PE as a whole hasn't done much better [2].
It's a dismal industry – for investors, that is, not necessarily for the employees.
[1] “WE HAVE MET THE ENEMY... AND HE IS US”, http://www.kauffman.org/~/media/kauffman_org/research%20repo... [2] NY Times: Pension Funds Still Waiting for Big Payoff From Private Equity, http://www.nytimes.com/2010/04/03/business/03equity.html?pag...
The LPs in big hedge funds also tend to be institutional investors.
PE companies also can charge fixed management fees.