JAH mining
https://glbse.com/asset/view/JAH has higher return than GIGAMINING at current prices. Shares are around 0.2BTC at the moment, and pays dividend daily instead of weekly.
You are certainly right on the dividend payments, but the stock is much more illiquid when you want to get out of your investment. The spread is pretty wide as well. For me it is the whole package which counts. Div's, spreads, liquidity, future prospect and the size of the company. Still I might be trying to catch some on the buy side as I don't own it yet.