First time build, parts advice.

Never built a pc before but game on a high end laptop. Selling my laptop for what ever it's worth and going to build a gaming pc for less than £1000/$1250.

I have been using pc part picker to get a general idea of what I want/ can afford but have some questions about amd vs intel and CPU vs GPU.

I know a lot of people seem to slam AMD but since there Ryzen release it seems like they have a lot of slightly cheaper hardware which gives more bang for buck.

I was going to go along the lines of a gtx 1060 and something like the i7600k. However the builds I look at seem to favour spending more on a GPU, like going for a 1070 and spending less on a CPU?

Do people generally spend bias towards spending more on a gpu than cpu? Or split the funds 50/50 on each?(obviously still accounting for the other parts)

What are the disadvantages of buying a £200 AMD cpu vs £200 intel, apart from the fact that at that level amd outperforms intel?

Sorry if it's a bit jumbled and unclear!

Thanks for any help and advice in advance, it's really appreciated!