I've started gluing British from Victrix 2 days ago. I've made 7 guys and I have to tell it was quite fun activity. They were second hand sprues and one miniature costed me 0.2 euro, so I cannot grumble
Comparing them with Perry figurines, they are a little bit bulkier (which I like) and have more dynamic poses. Plastic is nearly identical and I don't see big differences in quality. If I have to recomend one box I would say to pick any of them.