I know quite a few people here say "oh, it'll be better on the next bloom" when someone post a picture of a first flowering paph that is not good.
I know it happens, but I find it rather annoying because it sounds as if that is the trend, which is not true. I understand they are being kind and want to perhaps make others feel better.
As far as bulldog paphs are concerned, I know that breeders jump on the quality first bloom seedlings and cross with something. When they have a few exceptional ones, they "discard" the rest.
The only time they would keep slightly deformed or less than desirable first time bloomers and bloom them again (and rarely third time) to see if there would be any improvement is when they see something they are looking for, such as perfect dorsal or petal, or very unusual color combo, or unusually good size.
I have yet to see first blooming uglies which "improve" on the subsequent blooming. Again, it's definitely possible to improve, but it is definitely not the trend nor guarantee.
What I see more often is that good first bloomers would have worse quality flowers in the second and third, or quality of bloom differs on each blooming, up and down.
Then, there are some that are quite consistent everytime, and I love these reliable ones the best.
I remember one particular green bulldog whose super glossy and very thick textured flower and color I loved, but there were just too many wrinkles and folds on the dorsal. I bloomed it again. The following season, the flower was almost perfectly round and flat, but atlas! it had a very deformed lip, which looked as if it had been exposed to some nuclear pollution. very small and wrinkled up that you can barely see it.
I bloomed it again the third time, and I don't even want to describe it but to say that I threw it away without thinking twice.
So, yeah, this is my experience.
I usually don't keep the first time uglies. They hardly "improves".
Now, other plants, I don't see much deformity but it's just a matter of personal taste of overall shape, size, colors and such I would say.