Ambassadors or Angels?

its a bit of a double header this weekend.the finale to the current tv series and the release on dvd on monday of ambassadors of death.just wondering which of these you are all looking forward too most?as a long time dr who fan and being a tad disappointed with the current series im most looking forward to a pertwee story i have not seen for a long time and for the 1st time released in full colour. just wondering what other peoples thoughts are?