computerbroken :
gettign the highest rated parts from amazon and the lowest cost of the highest rated, is that ok? or go for laptop? which is better, i dunno any of this stuff
The problem starts with your initial assumptions.
1. about 80% of people that rate stuff are idiots (for want of a better word). Their ratings are subjective and includes consideration for non-performance and non-value.
2. Then you get the issue with age of product and number of reviews. Is a 10-year old product with 15,000 reviews at 4.5 stars better than a year-old product with 360 reviews and 4 stars?
3. Then you conflate price with value and ratings. The highest rated product already yields a different selection criteria than lowest cost. is a $400 product with 5 stars better than a $360 product with 4.5 stars? What if the number of reviews on the %360 product exceeds the number of reviews on the 5-star product by a factor of 5?
As so many on here have already pointed out. First decide what you need - a laptop because you need a mobile product or a desktop because you don't care that it will weigh 20-30 pounds excluding the monitor, but you need the large monitor and the cost savings of a desktop.
Once you have decided that, then the decision tree bifurcates again. So start with making the easy, basic decisions. After that, when you have it narrowed down - laptop, tablet, Surface, desktop build-your-own, buy, form factor, etc. then start making quantitative decisions based on hard reviews such as those conducted by experienced reviewers such as the fine folks here at Toms, the fine folks at Anandtech, JohnnyGuru, nothebookcheck.net, and so many more.
Good luck, you have a long journey of learning ahead.