Need to identify what is your intended purpose PRS or hunting ,Bird watching ETC ...
Anything 12x and above you will probably want a tripod, 10x is good for hunting and quick target acquisition/hand held etc. but for more long range and detailed work the 12x or 15x are likely better options .
But again what is you intended purpose..
I own Leica HDB 3000 for hunting and UKD matches where the time and fast acquisition of targets are necessary, and the large field of view is needed. Although for PRS when my tripod is typically with me, I use the 12xUHD binos and range targets with my 2700b Leica,
Works well .
so good luck with your choice !