I feel like wingers work when you have someone else attacking the space a IF would attack. So a W(S) and a CM(A) work really well for me in a 433.
Also you need to think about your LB/RB. It's going to depend on your system, if you want to stay back or play with quick transitions I think FB/WB work well. However if you intend to hold the ball or play against low blocks a lot I think it's a bit too unidimensional to have two players on the wing that just want to stay on the wing. This can probably be fixed by doing something like: play narrow + W stay narrow + WB stay wide (to force an overlap)
In previous FMs I hated the W(A) because all they did was: run with the ball, cross, cross is blocked, get a corner, repeat. For this reason I haven't used a W(A) yet, but wingers feel better this year so maybe a W(A) is viable.
On my 433 I play on the right side with a W(S), CM(A) and IWB(S). Works well, really pressures the opponent's half space and frees the winger (that is always the widest player on that flank) for 1v1s. Can be a bit weak against counters if they have a wide player up front, far away from my IWB