With my Upgraded Scaredgirl I can play 10 games in 1 hour.
My win percentage was about 60%.
That means that I won, on average, 6 games per hour.
That means that I get 18 spins hour.
With The Condor, I can play 20 games per hour or more.
My win percentage is currently 33%.
That means that I won, on average, 7 games per hour.
That means that I get 21 spins per hour.
As you can see, with The Condor, I am getting 3 extra spins each hour of FG farming, even though the win percentage is half that of my Scaredgirl variant.
When tracking the effectiveness of a deck, I'll always use this formula.
Games Per Hour X Win Percentage X 3 = Spins Per Hour
This takes into account the deck's speed and win/loss ratio to give us a numerical rating for each deck.
Jallen
Edit: Had to correct my math.