You can create entire games using Blueprints and never touch a line of C++.
That qualifies as an alternative to C++ 
Personally, I wouldn’t do a pure Blueprint game, as they can be a bit finicky sometimes and/or corrupt because the name of the day happens to end in a ‘y’.
As long you don’t make all your Blueprints look like spaghetti and no when to use C++, you’ll be fine.
As far as raw engine vs engine, Unity kicks as much butt as any other engine - more so in some areas, less in others.
I just can’t say I’m a particular fan of Unity’s locked in nature or need to buy basic features.
I feel feel that non-2d or mobile games using the Unity engine feel off… but that could just be me.