I'm an 44 yr old dude and I prefer the speed lacing as it is quick to get the boots on and off, and also very easy to adjust on the hill if you want to snug up a bit more, or if you want to loosen up a tad. I wear Burton Ion's. I insist that or the spin the wheel system for my kids to keep things simple when they are getting ready.
However if your boots are comfy and not worn out I wouldn't change them unless you really want to. If you do want to change anways then try on a whole bunch of boots, walk around in them, and try to go to a shop that has a good boot fitter.
Somebody once told me that most people are either a Salomon boot fit or Burton boot fit, not sure if that's true, both brands are pretty reputable.