>...yet again I lumber into yet another photography situation where compromise and trade-offs are necessary!<
Consider the following:
1. The landscape photographer has all the time in the world to compose the image.
2. The landscape photographer is able to frame the composition exactly, thereby maximising the camera sensor resolution.
3. The landscape photographer shoots at base ISO for the cleanest images - every time.
4. The landscape photographer shoots off a tripod which, along with other measures, returns biting sharp images.
Of all the genres of photography, I consider landscape photography to provide the photographer the maximum opportunity to capture the most technically perfect image of all. I also consider that the landscape photographer sees the most return on investment in camera gear performance. Couple landscape photography with a photographer with the ability to compose well and the probability of capturing stunning images surely is maximised.
Of course, I should note the minor point that I may be biased.
As an aside, from your original post:
>I'm using my 24-70 currently and doing some HDR with the Sun in the frame<
The sun will always be overexposed in an image in which it features, so HDR will not help in that respect - normally you would expose for the clouds/foreground/whatever.