This has been covered before, bit it seems it needs to be repeated.
Lewis's Vs the corners. He brakes very late and very hard in a strait line, this causes an extreme weight transfer to the front axle, that ensures as much front grip as possible. He then turns in and releases the brakes in a controlled fashion (aka trail braking). People like to say this makes the car rotate faster, and that is true in laymen terms. technically speaking when everything goes perfectly it increases the cars slip angle, if it doesn't he gets little micro oversteer snaps. On exit he straitens out the car, and applies power as quickly as possible.
This style didn't work with the GE cars, because it aerodynamically unsettled the car. To get maximum performance out of the GE cars you needed to be buttery smooth, and minimize changing the cars pitch under braking.
Charles Us the corners. He breaks late like Lewis (not sure he is as late though) and turns in very aggressively but he doesn't trail brake like Lewis does. He gets off the brakes earlier and carries more speed through the apex on average. This is one of the reasons why Charles looks like he is on the razors edge on hot laps. Like Lewis, he gets little micro oversteer snaps when everything doesn't go perfectly.
this style is a little more adaptable, and worked very well for him in the GE error.
My hypothesis is that right now (with regards to the formula) over the course of a race distance Lewis's style is a little better on average. If he breaks later than Charles he hits a little higher speed down the straits, and can recharge a little more via super clipping and standard harvesting. It also allows him to keep more heat in the brakes (not always a good thing).
This effect could become more severe or it could become less severe, depending on how the team and the sport as a whole develop through the current regulation set. Charles might also adapt to some extent, and negate the difference. I'm sure the shifting to a 60/40 split over the next few years will also make the issue less severe.

