I rarely use the sub 10x on any optic. But at some point I’ll always use the top end. There are plenty of people out there running 27x on many match stages and doing very well. It’s all personal preference. There’s a lot of “I can’t do it, so they can’t either” when max magnification is concerned, so most don’t bother bringing it up. I personally don’t pigeonhole myself into a preferred magnification. I let the environment and targets dictate this. Sometimes it’s 12-15x and other times it’s 27x.
If you’re hunting with it, the 35x may help with finding and identifying animals or watching them move at distance as they or you get closer.
Unless I absolutely needed the 5x, I’d get the 35 as it won’t hurt to have it.