The pod on the left is a novelty phal cross, pollinated on the 23rd Feb 2015. The other pod is a multi-floral, pollinated on 28 Feb 2015. Both appear to have taken but past 3 months is really the best indication. Both appear healthy.
Side-by-side, its easy to make a few comparisons. Novelty phal crosses generally result in far fewer seeds in the pod. The opposite occurs with multi-floral crosses. Judging from the size of the pods, this conclusion seems to be true. Novelty phal pods generally take longer to mature. This also seems to be in the ballpark as this pod is far smaller than the other pod, yet is almost a week older.
As time goes by we'll see if the above conclusions still hold true.
Both these pods are from my own crosses ( TQ's Tracey - novelty, crossed with Aileen Stoops and TQ's Lisa, crossed with Taida Sunflower Diamond ).