One thing that is really great about all historical wargaming, is the fact that you can mix miniatures from different lines. But not all miniatures work quite well together. Below I have listed the 6 WW2 companies that IMO fit together.
In my opinion the new shining star on the WW2 sky. Price: 1,5 EURO/mini, Range still growing, but very promising. Casting quality: some of the best I have seen so far. Nice sculpting. They have very nice command units. If you are looking for medics or “sparks”, this is the company to look.
Great range. Price: 1,5 EURO/mini. Very nice and unique sculpts, casting is also good enough. Recommended! Still my favourite for Africa and very recently the late war.
Good enough range of minis. Price: 1,5 EURO/mini. Good enough casting, nice sculpt (But: IMO the minis look a bit fat). They work very well with Artizans mini. The equipment seems to be the same.
Huge range. Price: 1,5 EURO/mini. Casting: OK, some older minis are quite bad sculpted.
Good enough range. Very high Price: 2,5 EURO/mini!
Sculpting has a lot of detail, the faces are quite bad. Casting: Good. The range has some very unique models (like the Vampir Nachtjaeger). The real downside is the high price. But watch out for specials!
Their older range was a bit small to fit with the other companies. That has changes since WW has introduced their 'separate head system'. Price: 1,5 EURO/mini. The figure above is from the Secrets of the 3rd Reich range.