What ever floats your boat...but the SE will not take to mods nearly as well as the SVT (smaller TB/UIM/LIM and milder cam), nor will you stop as well, nor will you enjoy all the interior features. Nor will you enjoy the front air dam, side skirts, or rear.
Perhaps the SVT needed a good general tune-up? Perhaps it had some sh*tty gas?
But having owned both...I can tell you...when I jumped into the SVT..I was like..."Now here's the real McCoy..."