Here! My contribution to the topic...
Last weekend after 6 years I wore out my Merrells to the end, so I researched too. In the end (after pb. 20 tried pairs) I hesitated exactly between mentioned models: Alpina Lhotse, Scarpa Triolet GTX and Garmont Idaho.
1. Alpina Lhotse - model with Perwanger leather (orange) was somewhat stiffer and pinched me distinctly in instep area when squatting. Model with nubuck leather (brown) seemed more comfortable but the issue in instep (to lesser extent) was still there. If anything, I'd choose brown model, available with PZS discount for 200€.
2. Garmont Idaho - no special remarks. Comfortable, stable, crampon slots... In Igluj action for 167.00 €.
3. TRIOLET GTX - SCARPA - heard Scarpa has narrow models, so skeptical. But when I tried the boot in right size I couldn't find anything bothering me. Comfortable and stable. Nothing binds. Ties very nicely, tongue fits well. Front on sole has some special "climbing" zone that supposedly gives good grip on rock. Actually color bothered me most (I'm more conservative). Price at GIGI: reduced from 270 to 200€.
In the end chose Scarpa and got Tuesday 10% discount (price thus 180.00 €). Already tested boots and quickly went uphill to Pohorje. For now more than satisfied. Will get used to color

Slightly skeptical only about metal "hooks" for laces in lower part. Hope none breaks off exactly 1 day after 12 month warranty.
Hoping I helped someone, LP