This question requires specific analysis. If you are a seller, AliExpress will be easier to do business on than eBay in 2021. Because the overall experience of AliExpress is more friendly, logistics and payment are convenient and fast, and the product quality and price of AliExpress are relatively stable, which can provide a good shopping experience. If you are a buyer, eBay may be better in 2021, because its inventory is richer than AliExpress, the price is more competitive, and you can also get more coupons and discounts. Of course, in the end, you still have to weigh the pros and cons according to your needs and actual situation and choose a platform that suits you.