Red H'ween should be going down now a bit since Halloween is over, Although if you bought a Santa now you will certainly make a profit near Christmas when everyone is trying to buy them.
Either one will make you money, Just choose whatever you think looks better
Whichever one you buy, rares are always a good investment. I'm not too experienced with investing in rares, but I imagine with Halloween over and Christmas approaching in less than 2 months that Santas will start rising