Depends on the price, and I've had that go both ways. On our last trip to SFO and Yosemite, a minivan was quite a bit less expensive but you really have to compare.
If you go with an SUV though, be sure you get a BIG SUV -- like a Suburban, Tahoe, etc. Not something advertised as "full-sized." 4 boys with golf clubs is a lot of stuff!