It is currently complicated to add stocks to portfolios while analysing stocks - should just have a one button add to portfolio..

I would be happy to do the analysis. It would be nice to have ongoing data about the efficacy of the ratings. Schwab (at least to institutional clients) provides live updates of how their ratings are performing, which right now is not great.

allowing user to select the valuation model to default on the summary sheet

From Lorenzo:

When I want to export e CSV from the Stock Database, I was wondering if it's possible to have an "as of" choice... For example to export the values for a precise date in the past.

I have noticed that a lot of cyclicals and garbage stocks made it on the A rank screener due to one time massive earnings. It's also very hard to figure out which is cyclical and which isn't. Apple is technically a cyclical, but I don't think they will suffer much of a downturn. (They are a one of a kind.) 

I suggest you build special evaluation screeners for different industries. Like for example, for a financial screener, you could make banks and insurance A ranks based on a high ROE and low P/B where as a cyclical can be more favorable when the P/S or EV/S is well below one. And pharmaceuticals could be A ranked based on good growth, Price to Research ratio, etc.  Just a random food for thought in how you can construct a "more accurate" winning stock picker.

EDIT: Also if you would like, I would be very happy to provide more specific ideas and details to help you guys construct specialized screeners. 

For example, if I got to SLB's valuation and change what i think the EBIT margin and multiple is, can I save that so that every time I go back to SLB, I don't have to re-enter all of the data? - From Sean Shannon