Preferred Form of Gold

I'm curious what others prefer as their form of gold. For simplicity sake, let's say we're just talking 1oz pieces and not bars or fractions of ozs. In that case, would it not be best to just buy the cheapest gold coin you can, whether it be krug, philharmonic, maple or whatever? The over spot rates are much higher of course on American Eagles than others, although I own those as well as krugs. Still, do you just buy the cheapest well-known 1 oz piece or am I missing something?

Pretty new to this so just asking. Thanks for listening and sharing.