i would not be surprised if they were actually owned by the same person. i know a bit about who owns RHS, but that discussion really won't help you to make a choice.
RHS knowingly sold fake ak2i kits in the past. if you search gbatemp you will find a few posts about it. when the community called them out on it they publically stated that they were not clones. when the community proved that they were they again publically stated that they were not clones, eventually saying something along the lines that they made a mistake and it was the distributers fault for sending them clones.
RHS is a good site, they do have a good customer service department, they will ship it to you quickly, and their prices are pretty good when you consider the convenience of a N. American based site and USPS shipping.
If you buy from them just check the card when you get it to make sure it is not a clone. If it happens to be a clone they will replace it rather quickly. After the whole clone issue that they went through before they are not looking for more negative publicity.
-another world