G mail priority inbox find the important messages you recieve and sorts them for you.
At the top of the email it will bring the important emails to the top of the list, and the rest will go near the bottom of the list.
It has a star feature with this you can put emails you want in this folder this will allow you to come back to them in the future easily.
Gmail is a better service for organising emails where as hotmail will have all the emails together and give you problems when trying to find emails.
Gmail has filters which can automatically put a star on emails from spersific people this will allow you to access this emails straigh away.
Gmail has a great spam filter which can sort emails which will be good for you, this will be a excellent feature for people that use there mail frequently. This will allow the person to acces there important emails that will be at the top of he inbox and the less improtant emails will be at the bottom of inbox's. This  will develop when frequently using your email.
It records which emails are important are for you it will then sort it out into a prioroity listing, it also records the emails that you reply to the most this will go down as more important and emails and be higher in the inbox and the emails that arent as important will be at the bottom of the inbox.
You can also manually input emails to the top/bottom of list.
For a system like g mail to work efficently you will have to give it a period of time depending on how often you use the mail features as at first it wont be aware of which emials are important and which are spam.
The end result will be better as you will be able to access the emails you need quicker.