I am not a big fan of the pearl, but at the pearl you can get townhouses and great facilities, not necessarily an apartment. Also, not all buildings at the pearl are the same. Quality varies depending on the developer and on management company.

You can also, rent a stand alone villa at the west bay, with a pool and a lot of space.
Al Fardan has decent compounds all around Doha. It all depends on the kids' schools and proximity to your office.

Your best bet is to find a good real estate agent and have them find you a place that suites your requirements. If you like, I can share some contacts with you.
Send me a message.