thanks all for your reply, i feel in 24 hours a lot and really a lot of information & users experience have been written here to compare between Windows & Mac ... Microsoft & Apple should pay MacRoumors and you guys a lot of money for this such great information that they should use in there researches and improve there products.
after reading all your comments, i really feel that i should go to Apple Laptop and try to use Mac OS X as sometimes Apple make u addicted to there products... I also saw it in other forums where users are saying when you buy an iPod, then go for iPhone, iPad and MacBook or iMac ... it happen with me, i got the iPhone 4, then iPhone 5 then iPad mini ... and soon i hope i can get an MacBook for my next laptop

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I believe that the future is for the cloud, tablets, and fully integrated devices ... so when you start something in your laptop or desktop, you can finish it in your tablet or smart phone ... you can see it your self .. most of us already have an average 3 devices to work with ... (Smart Phone, Laptop and tablets) some users have other devices for gaming like PS3 or Xbox but that's other story even thou they started integrated that into mobiles & tablets ... like sony integrated there Play station game center in to there mobiles & tablets .. also Microsoft started doing the same thing ...
in the near future i believe that will happen .. so people are moving to Windows 8 and you can see it's even the same design of the mobile and tablet version .. even thou they have put Office & Outlook in the Nokia Lumia 920 so you can create and edit your documents right from your mobile and finish it in your laptop ... so you they are going in that direction to make a user loyal to a company .. if you really want to be synchronized in everything.
So it depend on your all other devices ... I used Android and i didn't like it for my HTC, so i moved to iPhone, and loved the way you can use it without any problems of hanging or heating .. because the same company is doing the software & hardware ... and that's the same thing is going for laptops .. since Apple is doing the software & hardware they manage to overcome most of the issue regarding the crush, heating, hanging and other issues (based on your reviews)
so regarding that, i really don't want to go back to Nokia or HTC to use Windows 8 and integrated to my Windows 8 that you must upgrade to it any time in the future ... so i should consider going for Mac OS X to have the fully integrated system with my other devices as my iPhone & iPad so i can use all of them for the same direction in work..
I am an IT company owner, and i really care about my files, doing quotes & designs in Visio so i think i can use the VM and use windows for these kind of things .. the rest of things (as i read from your reviews) i can use the Mac with peace of mind ... please correct me if i am wrong?? can i use the Mac for everyday use .. i mean for entertainment, because sometime i get cracked software or movies from friends that they download from the torrent files online ... can i still use them on my Mac??
other question please, Regarding the integration & synchronization between Apple devices, will the mail app of the Mac & iOS will have an archived copy of my all emails? i mean all my emails will be automatically copied to all my devices anytime i do a synchronization in iTunes?? or should i leave a copy in the server same as i am doing now with outlook??
a lot of you has asked me to go to Apple store and try the Mac my self, the problem (which i am scared from it the most) that i am in Yemen, and there is no Apple store or even iTunes store for our country .. the App store for iOS devices is very poor compare to US Apps Store .. so i am scared that the Mac Apps store for Yemen will not be having many programs for my next MacBook or maybe we don't have Mac Apps store at all ...

I believe that there were a lot of information been shared and i really would like to thank everyone for there kind advises & sharing .. i really would like to know more about your experience and information.
thanks all again for your support and sharing ...
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One more thing, i agree with the above that desktops will be replaced by Laptops, tablets & Smart Phones ... and you can see most of the network security company are talking about BYOD (Bring Your Own Device) so you can do the work on any device that you like securely without any problem ...

take care guys ...