Hmmm well when i use text i tend to go for something that fits the videos music. For example, if i was making a trailer and was use quite a basic text (e.g. Times New Roman) i would also make the text quite small, not so tiny no one can see it, about 28 or 36 :)
I rarely use outlines unless for example, white text is on a white BG, but then i tend to use shadowing instead as i personally think it looks neater.
Sometimes giving a blur effect to the text makes it feel more atmospheric (Using Gaussian Blur), try setting it to about 5 ish so that the text is still readable yet has some sort of ghostly feel to it.
Try moving the text also, not to fast however unless you are doing a video in which is pace is quite quick. Move your text according to the video, usually text is moved horizontally to give a motion effect. Also continuing this, add a fade at the beginning and end, or replace one of the fades with a transition of sorts.
I hope i've helped a little ^w^