My kids get as much as we can afford and as much as they will use.
The year before last we only used the first maxim and it was a disaster we spent way too much , the kids were overwhelmed and stuff got opened then forgotten about. Doesn't help that ds's birthday is. 23/12.
Both kids get a stocking from Santa and a big present from Santa - this isn't always big cash wise just the thing they've asked for the most ( eg probably fifa 15 for Ds which is £25) then they get some more presents but only things I know they will really use , appreciate and like . On Christmas Eve they get PJs, DVD , snacks, reindeer food etc.
They also get a huge present from my mum who goes overboard, about £75 from in laws and then quite a bit from ALOT of aunties and uncles. However , now the kids are 4 and 7. I'm trying to steer then towards craft stuff for dd, experiences (eg tickets), after school clubs, cinema vouchers etx ,
We've put a lot of effort into decluttering the past year and it is NOT going to be in vain.
Our kids get quite a bit more for Christmas than birthday and I have to say they have never once remarked on it or been disappointed on their birthday. When they're little at least I think mostly they get excited about the magic of it all and everyone being involved and family time etc. At least, I hope that's what my kids enjoy . I know if I asked them for Xmas memories they wouldn't talk about presents they'd talk about visiting family, christingle , watching Xmas DVDs, making decorations etc and we are by no means a Walton type family with angelic kids!!!