Copperhead Evo AM (which variant will depend on what's in stock)
E-stream Evo 45 AM
E-stream Evo AM 3
All of these 3 are very nice bikes. You didn't state if you like 28mph or 20mph cutoff but if you like to ride on the trails legally then 20mph is the choice but if you think high speed is a necessity then the following suggestions will change.
Among these my first pick would be Copperhead Evo AM , since it comes with excellent components , Fox 36 float front suspension, quad piston mt5 brakes front and back, and a very wide range 10-51 cassette with 12 speed sx eagle derailleur. It is coming with cx4 + 625wh which is nice.
My second would be Evo AM 3, Brose S mag with 750wh battery is an excellent combo, although this one also have very good components which should be more than enough for you, it is still a step back from the first option so it depends on the price for the same price I would pick the first one.
Emtbs come with a bit of an agressive geometry so when you are test riding keep in mind that you can change the handlebar(with a swept back hendlebar, you will have many different hand positions several being very upright and comfortable) to significantly improve that aspect of these bikes as long as you pick the right size (your lbs will help you with picking the right size) to begin with.
Whats a good cassette range you think I should look for?
IMO you should go with at least 11/42 and more if possible(that is %380+ range).
Cross bikes are ok, they are mostly emtbs with less tire clearance and lighter duty suspension components/brakes/derailleur. I own one(my first bike, was in your shoes I thought it would be good allaround) which is very much like the hardtail bikes in your second set(there is one full suspension and it is nice but if 28mph is not necessary then the ones in your first batch are better). These bikes are good for gravel and pavement but only ride-able(and not comfortable) on trails. Once you ride an emtb with higher end components you immediately see the limitations of the cross. With my cross bike I try to avoid even tree roots and try to stay on the path because it simply can not absorb the shocks enough and loses traction otherwise. With my emtb I go offroad and run over these obstacles on purpose, it makes riding on the trails very pleasant.
When you are test riding see if your lbs let's you take it to a steep hill or a bit of a rough terrain/trails. On flat pavement it is not easy to see the differences of the two bikes.
Don't rush, try as many bikes as you can and good luck.