I like my 7D with grip, wish I'd done it a long time ago, I like having the controls for portrait orientation. However due to the flexibility of the battery grip it is advisable to remove it for tripod work so if your landscapes will be taken from a tripod ditch it, if you hand hold your landscapes it becomes purely personal preference.
Not much help maybe, but just my thoughts on it.
7DII+Grip, 7D+Grip, 40D+Grip, 5D+Grip, EF 24-105 f4L EF-S 17-85, EF-S 10-22, EF 70-200 f2.8 L IS II, EF 2x III, EF 100-400 f/4.5-5.6l IS II, Σ17-70 f2.8-4 C, EF 50mm f1.8, 550EX, Triopo TR-985, Filters Remotes Macro tubes Tripod heads etc!
5D, 20D, 24-105, BG-E4, BG-E2N, 17-85, Nifty 50 pre owned.