@Bumblebuncher the first couple of rows/rounds in any knitting pattern are always the most fiddly - partly because there's not much to hold on to and partly because the pattern/stitch sequence isn't yet in your brain.
The circulars versus DPN thing will always be there and there isn't a best option - it's what suits you, your hands and your knitting style.
Personally I like 4 DPNs for socks (three in a triangle and one to knit with). I find that 5 DPNs allow the work to flop about and thus more likely that one of the needles will fall out. I don't mind a 16" circular for hats etc but when it gets to the decreases it's back to the DPNs, I can't be doing with pulling loops through or using two circulars so that there are ends dangling. If I'm knitting flat the shorter the needles the better 10" or 12" if I can cram all the stitches on. If/when I ever get around to making the cardi with about 400 stitches I'll use a long circular to knit back and forth.