The whale will benefit more even though the average price of the coin will be the same on "THIS POOL" vs of the rest of the pool you will be paying higher unit cost. Also the more you invest; the more control over the EOS coins, as a result when the EOS hits the exchange the whale can manipulate the market. Imagine a whale has control over 80% of the first pool 200,000,000 distribution how are you going to compete with only the rest of the 20%? Never mind the rest of the pool gets more expensive than the first pool. From an average Joe perspective, if you want to gamble we are better off investing in ETH because all of the money invested in EOS will be locked for 1 year, that's going to help building the Ether price up. But Investing Ether is very risky, as always, if you can't afford to loss what you invest then don't do it. ICO bubble will pop it's a matter of time.