[staplemonx]

Rivets are lighter and reduce slop in the structural system by filling the hole. Rivets are not easily removed.
Riveting more than 4 pieces of material together with blind pop rivets is not recommended. Other permanent type fasteners like cherry max or huck bolts would be recommended for this application.
Rivets will crush material during their installation, materials that cannot be crushed or that could be delaminated with a high point compression loading should not be riveted with traditional rivets.

Bolts are heavier and need a clearance hole to be drilled.
Bolts will not reduce slop.
Bolts are easily removed.
Bolts can be tightened to a specific torque, they will only crush material if you want to crush material.

Both bolts and rivets can withstand high tensions, compression and sheer loads if both material and size are part of the joint analysis.