It's all 'knitting-in-the-round". So whether you knit in-the-round with dpns, or on two circs, or on one lonnnng circ (for magic loop)...the results is the same. Round knitting.
I personally like knitting in-the-round on two circs.
Sock knitters may have a different preference. I don't knit socks.
I detest dpn's. Magic Loop is nice! But I prefer the 2-circs method of knitting in-the-round.
Check out our videos here, and don't forget YOUTUBE!
Cat Bordhi has a GREAT VIDEO for knitting in-the-round on two circs. That's what sold me!