You can use a laptop for whatever you want, but for shear power, you can't beat a good desktop computer.
My desktop could rival many Mainframe computers for shear speed and power. In years past, I ran a mainframe for the County, that was not nearly as powerful as my current PC.
I do have several laptops, but I use them more for "show & tell" than for any serious computing.
One ten-year old Toshiba, that I resurrected and reloaded with windows XP, Pro, SP3 is currently out on loan.
I also have one really sweet little Acer Aspire ONE, netbook. She's my Go-Anywhere PC.
I carry her around in an armored case, so she stays SAFE.
For the ultimate in Wi-Fi...