Depends too on why you are testing. For us, we need to get some evidence in place for skipping K. Since I knew that the school might do the WPPSI, we choose the SB-V. (Then I learned that they would take our test scores, and so there wasn't the concern of test overlap). We were concerned about ceilings on the WPPSI too.

Now for us taking the WISC this summer is to see if DS's LOG is near DYS. One of his achievement scores suggests this (although early readers are skewed).

JB