Is it best to use the same brand (e.g. Butterfly, Stiga, Joola, Double Happiness etc) for both your table tennis blade and your ping-pong rubbers? Are they specifically designed to work togther, or can you mix and match blades and rubbers from different table tennis manufacturers?
With the staggering number of rubbers and blades out there, you may find it easier to use the same brand for both, since it makes choosing equipment a bit simpler. But each rubber will feel a bit different on different blades, so there is no way to know for sure which particular combination will suit you best. And sticking to the one brand may mean that you are missing out on using the best rubber or blade for you.
So overall, I'd recommend using whatever brands you like - over time you'll develop a preference for certain brands, if you are like most players. Personally, I use a Butterfly blade, with Dr Neubauer rubber on the forehand, and Stiga rubber on the backhand, and I like this combination very much.
Vive la difference!

