In my opinion and experience, an angled spotter is way more versatile. With the combination of angled eyepiece and rotating body, it can cover all kinds of body positions, angles and directions more comfortably than a straight. The only downsides I have experienced is it takes a little practice to get on target quickly, and the angled doesn't always fit into a small backpack as neatly as a straight. So there are a couple instances where a straight might be a little more user friendly, but it will never have the versatility of an angled. I even prefer using my angled at the range. If I was making a big purchase on a spotting scope, it would be angled for sure. The angled can still do everything that a straight can, but you can't get the flexibility of an angled spotter out of a straight spotter.
