In a mouse what is important to you?
Do you do graphical design?
Just the basics?
For my ..
Mac (hears everyone scream in the background) I use the Magic Mouse very decent mouse.
Ubuntu I use Microsoft Wireless Mouse 5000 which was very cheap and I loved the price.
Microsoft Wireless Mouse 5000 mouse is not bluetooth but it outlasts the Magic Mouse.
I use both daily and like them both for different reasons.