I will go with a Hydraulic. The new grinds of hydraulics and lifter design have changed the RPM range so that valve float & lifter pump up doesn't happen at nearly as low an RPM as it used to.
As for hundred thousand mile rollers, they probably would but not with the spring pressures and cam profiles run in these engines. Any way who has to worry about that kind of miles on these cars that are being built will never see close to that.
In my first sentence I should have said that I would go with a hydraulic if I were to build another engine which is very doubtful. In fact I am very close to advertising the car and trailer for sale and getting out of it all together. Only went to 2 show this summer and didn't miss it in the least. Maybe if I were feeling better I would but haven't felt like doing anything and having to settle for doing just that. But Yeah come early spring I think that the package will be for sale.