Question about event handling

Let's say I use SDL (1.2 or 2.0) in my program to handle events, should I use callbacks or the good old giant switch statement?

Provide a testcase -- a small snippet of code that is running slower than you'd like.

while (SDL_WaitEvent (&e))
for (size_t i = 0; i < events_p; i++)
events[i].fun (e, events[i].arg);