Ephedrine will do much more to raise your body temperature (including metabolic rate) than psuedoephedrine will. Pseudoephedrine is more effective as a decongestant.
Caffeine will also cause pseudoephedrine, to be more effective in keeping your nose clear than pseudoephedrine would be alone. Current research does not indicate that this is a major advantage in weight loss, however. So, you're much better off with ephedrine for weight loss.