Fighters are not super popular in my games I have seen them on average being picked every second campaign. However that is still a lot more popular than a wizard as our current wizard is the 1st time that player has picked one in 15 years. Even in 3E she usually played Rogues and Bards.
Clerics have been more popular than wizards, hell I have seen more of them rolled up than fighters as well.
OK, you've established that you & your group are atypical. ;P
I think 5E has a spotlight type design and it more or less lets you break the game a limited amount of times per day.
I'd tend to agree. Every class has limited-use abilities - some more (a lot more) than others, but all have some. Even the non-casting Rogue archetypes have abilities that are limited by situation instead of n/rest uses.
Low level spells do not scale that will so they usually end up being used as utility
Nod. That's an added level of versatility.
5E spells also scale similar to 4E powers, martial damage does as well.
Not remotely, no. 4e scaling was mostly in terms of d20 bonuses, and evenly by level. Uses/day (& /encounter) barely scaled after heroic, topping out at 4 for attack powers, and, again, were evenly scaling across classes.
5e scales much less by level in terms of d20 bonuses, but scales rapidly in terms of hps & damage, and scales unevenly (across levels & across classes) in terms of attacks/action and uses/rest. It's a very different sort of scaling that slaps a multiplier on static bonuses, makes encounters/day pacing critical to class balance, and makes numeric superiority tell heavily in an encounter, among other things. The overall effect evokes the classic game very well, in spite of BA.
Relative to what you are hitting though 5E damage is better than 4E due to less hp the opponents have if nothing else.
Much beyond apprentice tier hps are typically higher in 5e than they were in 4e at the same level (though, of course, they don't go to as high a level). But, yes, 5e damage quickly outstrips that of 4e - 5e has to scale somehow, and BA leaves hp/damage.