On a serious note though if I was flying with Emirates (say) and had lounge access I'd just use their lounge
In theory, you could use either, but not both.
On one hand, you have a very good lounge, but you have to go through check-in, security and boarding like everyone else
On the other, you'd have a quick and quiet check-in, security and driven straight to the plane, but you wouldn't have the great lounge and probably have to climb stairs to get to the airbridges
Choice is up to you. I was at the runway viewing area recently, saw the building and it's not as big as i thought it was going to be. To top it all off, it's right next to the ground run area and taxiways, not the noise you'd want to hear in a lounge