In retrospect, Pence was a great choice for Trump, and running with Trump really was Pence's only chance to run for Vice President without much controversy. Pence's ideology would've utterly dominated the headlines if he was, say, Rubio's running mate or Cruz's running mate.
Rubio's, yes. Cruz's, absolutely not. I would say that Pence is only slightly to Cruz's right, and Cruz is much more brash about his ideology than Pence is.
Anyway, I agree that Pence was an incredibly smart pick by The Trumpenfuhrer to rally the base and give him some balance on the ticket. Quiet, conservative guy from the Midwest? Yeah, checks out.