I've been looking around at other people's models and playing around as well and I've noticed two different modeling methods. The first is modeling separate parts of a complex model then merging them together. The other is creating the model as one mesh or stitching separate parts together. Granted, the model as one mesh does look amazing but takes time. Merging parts together is quicker but frame rate can suffer. Note, I'm not taking about separate models on a character or object for the sake of game scripting/logic such as a sword being a separate object. Any thoughts or opinion as to which is better for the average developer?