Glide approach for sure!!! Just because it's a heck of a lot more fun!!! Power approaches are about as boring as driving a Kingswood automatic - just steer and more or less throttle. I consider flying by power to be 'driving' an aircraft. The real 'flying' starts when you pull the power and start gliding......
A glide approach requires simultaneously sensing and calculating so many factors that make it an interesting challenge. Balancing aerodynamics, height, speed, momentum, lift, drag, wind, gravity, etc to effect a gide slope that will set you down just where you want. And I do mean always aiming for an exact touchdown point, just as if it's a spot landing competition. Power off at the start of base, and the rest of the way by balancing all those factors. It's really satisfying to get it just right. Takes lots of practice, but that's the fun! Up and around in a short circuit just so I can do another glide approach, over and over again. Deliberately set up high and try to slip right down to the point. Set up low and practice very best glide. Particularly fun if there's lots of wind to figure in, and extra good with a x-wind. Every approach is a bit different so a new challenge. That's why it's so much fun - can do it for hours.... And you can sure get good at it with lots of practice, so it's really satisfying. The closest comparison I can make that's so much fun is down-hill skiing - ride up to the top just to be able to do it again and again.
At my home airfield of Kilcoy, Qld there will sometimes be 3-4 of us all following around for multiple glide approaches - maybe a dozen or more in quick succession - a heck of a lot of fun!!!
p.s.- Also satisfying to know that you can dependably do it into a paddock if the engine really does quit, no way you're really ready for that without frequent practice.....
JohnG