The services offered by each of these platforms have been compared in response to your other question (please see http://www.enotes.com/homework-help/compare-services-offered-by-alibaba-com-with-those-475619).
As already mentioned there, Alibaba is preferable for SME (small and medium enterprise), while Globalsource is much better for medium and large enterprises.
A toy seller is one of the SME and would benefit by joining Alibaba, which caters to the Chinese market, which along with India forms the largest market available to any seller. Additionally, Alibaba offers free-post based features (on Taobao), which will save you the cost of subscription. Taobao can also be used for advertising and getting a better placement in customer searches. Taobao has a much greater user base and would benefit your business.