1. Macs are better for graphical design, if you are working with photoshop or corel draw, Macs are a must
2. Macs are better for programming
3. Macs are faster than windows
4. Macs are safe and virus free
1) no longer remotely true. maybe 20 years ago, but for the last 10 its been a myth.
2) never been true. never. for the majority of the mac's career, this was one of the worst platforms to program on. some still consider objective-c to be the devil's handiwork.
3) again, not true. this has more to do with default config and the user installing stuff. you can throttle a mac as easy as a windows as easy as linux as easy as unix.
4) again, not true. viri are majority caused by a user executing something unwittingly. this was for the most part true in the days of xp and earlier (inability to stop a rogue program from asking to run), but with the kernal mods to windows vista and later, they are on about equal footing now. The only x-factors are 1) how many people targeting that particular platform, 2) how many people are gullable on that platform. I would actually posit it would be easier to get a paranoid mac user to execute a malicious program than to get a paranoid windows user to mainly due to the false sense of security that apple sells. The windows user will never trust it, the mac user will think they are safe. On top of that, you have more things to worry about identity theft these days with websites and the ubiquitous cloud than your personal machine. These are 1000x easier to hack than your desktop due to the myrriad of flaws in the various standards and their implementations. Hell, Wired (or maybe it was Ars Technica) ran an article recently where a writer of theirs had his Mac cloud service "hacked" via social engineering and the attacker erased all his devices remotely among other horrors. The owner never was even contacted by apple.
Anyway, enough of my podium proselytizing. I'll just say this, as with anything in this world: don't believe the hype, its usually wrong.
[P.S. not saying windows is great, just that apple is selling the hype not a product]
[edits for spelling & grammar]