Most of mine over the years have had 5 studs. A few, up to 13" had 4 studs.
I have some that have lug bolts, and I don't like them very much. I ALWAYS grease them before inserting, although some people say don't.
But if you have ever had one seize up in the hub, you would know why. When that happens, it's a very difficult situation. You can't get it off, and you have probably rounded the bolt head trying, and you can't get enough leverage to break it off.
In the end, for really bad ones, I have used an angle grinder and made a slightly smaller hex head. Then used a torch to heat the stud and a 3/4" impact socket to get it off. Fine and dandy, but a REAL pain to do on the side of the road!
Still, if you grease them, you won't have that problem, you just have to be careful to not over-torque the bolts. You get the touch for tightening them after awhile