Why, I'm just curious
straight for short periods of time.
angled if you are going to be there a while.
and you wont be disappointed if you decide to go vortex.
Funny...We're 180 degrees out.
While I agree angled can be better when shooting prone by yourself and looking thru the spotter just by turning your head is convenient and comfortable for the quick glance down range. For extended viewing such as spotting for a match, a straight spotter allows me to sit or stand comfortably while looking straight ahead. Stand up and stare down at your shoes for about 30min, my neck starts killing me!
One thing we do agree on is the Vortex Razor!
If you go angled make sure you get one with a mount ring that turns to allow you to rotate the scope body. If the eyepeice is only accesible from the top (0 degrees) that is useless for use for trying to maintain your shooting position.
I have an angled Kowa and I rotate the body so the eyepiece is at 90 degrees. I dont look down into the scope. I turn my head and look straight through.
If you are shooting with a partner spotting for you straight is best.
If you shoot alone angled allows you to take a peek at your target without losing NPA/or breaking down your position.
For hunting/fast acquisition straight is easier. If you want a reticle there will be more choices in the straight line of scopes.
I primarily shoot alone and got an angled. Laying in the prone or seated at a bench a slight turn of my head allows me to get on the eyepiece and see the shot result. If I was spotting or gazing for targets/animals I would want to get a straight scope.