Like almost all posters here, I very much prefer a logical flow through the cockpit, working from memory. Mnemonics have also worked wonderfully for me when doing checks while airborne. I have found, in a fomiliar machine, a printed checklist usually more of a distraction than an aid. I still used it though - used it to fan myself before the a/c could be switched on if I had one. That way, I followed the letter of the law which says checklists will be used, but not HOW they will be used.
However, if one flies multiple types, or your company has no standard cockpit layout for one type, a checklist for each specific aircraft can save a lot of heartburn.