If you're a plebe parent and cost is an issue, definitely go for Commissioning Week vs. Easter. While Easter is an important religious (and secular) holiday, it's not a big deal at USNA. There will be church services for those who wish to attend. But other than that, it's like any other WE. IMO, it's not worth coming to USNA for unless you live w/in driving distance and/or money is not an issue. Even then, your mid may well be studying for 12-weekers or finals (depending on timing of Easter) and may not want to spend too much time away from the books!