Currently Diners is offering a 40% bonus if you transfer Club points to British Airways. One of the better leverage opportunities with Diners points.
Also, they seem to be updating the "Travel Portal" web site. I can't see my latest points value, but there is a new format to displaying the Transfer Partner options, and a booking tool I had not noticed before. This allows you to use the Diners points for a direct booking for flights, using points. The outright redemption is 1c per point, so not the best. However, if you are looking for Delta or Alaska flights, given the reduced transfer value ( 5,400 Diners points to get 5,000 miles of either Delta or Alaska ) and what I think is the ability to use a combination of points and cash, it's a redemption pathway that may work out better for Delta bookings.
This post made me run to their website! I see they are still not taking applications 😩