Honestly, I think only you can answer that for yourself.
First of all, it's not like the animals come right up to your window. They are confined at some distance from the window of your room. And if you are higher up, you would see more, but be further up, so in that sense fartehr from them. It's not that they are very far, it's just that they don't like lick your window or anything.
Second, most of the time you can look out and see a number of them at any given time. Sometimes they are more remote, but they have put discreet feeding stations out so the animals are often near those areas, esp. at feeding time.
The two times I have stayed tehre, I had pool view, which was lovely. I could view the safari area from an outdoor lounge across the hall, more or less, from my room ( you may have to walk a little ways down the hall to it, but ours was right near the elevator) Our room was such that we had great pool and restaurant access, so that was a big plus. thre are some pool view rooms which are arcross the hall form the standard (parking lot view) roooms, so I imagine those rooms are not as nice. In either the cooler months, or even the hotter months, this in itself is worth paying extra over a moderate, where there are LONG outdoor walks to get from places to place (At all mods except POFQ, there is a lake in the middle of the resort, and you have to go around it or across it to get the pool/dining.)
We were told one of the two rooms we had was deluxe, but the difference was minor, just a different bathroom layout, as far as we could tell.
No matter where you stay you can go to the outside animal viewing areas (backside of resort ground level), but maybe from the standard rooms you probably won't do it too often. Also, they have activities for the kids all day long at this resort, so that is a bonus, too.
Although the transportation is strictly via bus, I've always found the busing to be very good. Our family has dined at Boma many times, so even when we weren't staying there we had to take the bus from there, and it's always been very quick.