I would say the one you have to hand. I have had many sanders, from belt to Orbital, the latter 1/3 sheet to the mouse, some corded, and some battery. The latter often they share batteries with other equipment, so we have to compromise, I want a good quality multi-garden tool, using two batteries, so good power output, so I went for Lidi multi-garden tool, so locked into Parkside from Lidi.
The drills seem to come either SDS hammer or multi-tool, so two drills, one for hammer jobs, the other is a saw, sander, plunge tool, and of course drill. The plunge tool is not very good, but rest seems to work well.