To be fair, it is hard for the Navy and RAF to really show off what they do at an event like this, the Thames is too shallow and narrow at that point to bring a ship up and helicopters ad jet aircraft don't have enough space to land. For these reasons the army tends to steal the show a little.
This was the case last. I am biased, being a Gunner myself, but the highlight of last night was the musical ride of the King's Troop, the Royal Horse Artillery.
Please be aware those guns weigh over a tonne each and have no brakes, many of the maneuvers are done at the gallop and the troops themselves are trained fighting soldiers an addition to their ceremonial role.