There is no right answer to that, because every person has a preference as to which Control Panel they prefer using! But having used cPanel, Plesk, HELM and DirectAdmin, I would say cPanel is the best all round for ease of use and for options it offers!
I think it really depends on the market you are targeting.
Agreed! However, I feel like cPanel is the most popular and most widely used control panel - so you could probably attract the most amount of clients using cPanel?
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