Hi Mark, what exactly do you want the PC to do and have you any idea of your future needs ?
Are you very rich ?
Intel v AMD often comes down to personal preferences usually arrived at by either good or bad experiences with one of them that you had used previously.
Intel
For : From what I have seen they seem to work with any peripherals and software without hassle.
Reliability.
Apparently less problems with cooling the CPU.
Against : Very expensive.
AMD
For: Very fast for gaming,can be overclocked by nutters enthusiasts.
Cheap,lots of speed for less cash.
Against :I have had problems with software not working properly on AMD but works ok on Intel.
I have had problems with peripherals not working on AMD which work fine with lesser specifications of Intel.
Need to have very reliable and efficient CPU cooling as they tend to run hotter than Intel especially if overclocked.
As I said peoples views are coloured by their own experience and I have found that Intels have never given me any problem whereas I have had problems with my AMD ones(other will no doubt have found the opposite to be true),having said that,the two PCs I now use are both AMD.
I think that you will find that from any board manufacturer there will probably be a slight increase in the price of their Intel version of the same board compared to their AMD one,possibly around 10%
The main jump in price between the two makes are in the CPU.
An Intel CPU of a similar speed to an AMD could be 50%,(or even greater),more expensive.
If you can let me know your needs I may be able to point you in the right direction but again motherboards have their own fans and one person will recommend one make where another person will say I wouldnt have one of those again
Sorry if this hasnt been too helpful,but its a bit like asking which is the best car for me to buy