It's hard to say how good this series is in comparison to the others. In series 4, there were very few candidates I was actually impressed with. A lot of them were very nasty and stupid people, the finalists were poorly chosen and there was far too much arguing and bitchiness. I really felt I was watching Big Brother sometimes. I think the fact that a CV buls*****r won summed up the whole thing

.
There's not so much nastiness this year - Debra isn't quite as bad as Jenny C and some of the other girls last year. There one or two idiots, but they're generally much more level headed and seem to work together better. In terms of business, though, they're only slightly better - but I don't think even Ben is as stupid as Kevin or Michael

.
I would say the candidates in Series 3 were probably better than the two following series. Whatever you thought about Katie and Tre, they both did have some credible business skills. Kristina was fantastic, and even Simon had his moments - and there were other good candidates, like Naomi and even Jadine.
Apparently Sir Alan said that he wasn't very impressed with Series 2, and felt most of the candidates there were out of their depth. I would probably have to agree, it was really only the Badger who was
very good. In some ways, those candidates were almost as bad as Series 4, if not worse.
Series 1 was probably the best in terms of business acumen - but not as entertaining. We love to watch the idiots, don't we?