The average wait from an Obama nomination to appointment is about 240 days, it was 277 under Bush (that was from Politifact). His appointment do spend more time on the floor for debate but much less time in committee. The big issue is he is 44% slower in even bothering to nominate anyone (compared to Clinton and Bush) which, when added to retirements and other planned/unplanned vacancies had led to a large increase in open appointment slots. That in turn is used to make the Senate approval process look completely out of whack with his recent predecessors, when in fact it's not all that unusual with the baseline set during Bush 2s time in office.
The best analysis is on judicial appointees, and as of his first term Obama had a 80.5% (173 out of 215) confirmation rate while Bush had a 77.4% rate (192 out of 248). Those numbers are from the Congressional Research Service.