Some lounges have views, some don't. At the end of the day though, you'll be able to see a few gates directly around the lounge and maybe across the taxiway to the concourse opposite you. None of the lounges have great views of any runways.
I'll give a quick rundown of the lounges:
E14 - former International First Class lounge (back from the 1990s). Small-ish, only lounge with showers, has some hors d'oevres put out at dinner time. No views whatsoever.
E15 - former BusinessElite lounge. Much larger than the lounge next door. Hors d'oevres there as well. Not much of a view - you get a great view of a widebody at the gate right next to the club, but that's about it.
C - Upstairs club, it's the newest lounge at ATL
. Small but nice. Standard snacks of fruit, cookies, pretzel mix, etc. Views of some of the Delta Connection gates on Concourse C, as well as looking across to (I believe) the northern half of Concourse B.
B25 - Upstairs club, a bit run down. Gets crowded. Standard snacks. Views of parts of Concourses A and B.
B10 - Concourse-level club, worst lounge in the Delta network. Small, crowded, dark, no view, no draft beer. The only time I will ever go in this lounge is if I have a very tight connection between flights that are both leaving out of the lower B gates. And even there, I might rather sit at the gate.
A Centerpoint - Upper level club, a bit larger and roomier. Standard snacks. View looking toward the B gates, but not much. Behind the agents desk is a nice view looking down on Concourse A, but you can't sit there. This club is closed on weekends.
A17 - Another upper level club. Bit more crowded than Centerpoint, but otherwise very similar. Views looking onto Concourse A/B.
- the original Intl F lounge at ATL
(before Concourse E). Normally is quiet, some views on Concourse A and T. Standard snacks.
What I'd recommend you do is maybe go to downtown Atlanta (20 minute ride on Marta) and check some stuff out there. If you're interested in staying at the airport, there are some big windows at the end of Concourse C that look right out onto the southern runways. There's also a real good restaurant in the E Concourse called One Flew South that I normally eat at if I have a couple of hours in Atlanta.