Medium Clues may be the most popular among the RuneScape community as they have excellent rewards, but not as high requirements. While there are many things you can discover inside, the most notable drop that deserves recognition are the two Ranger Boots. The item is valued at RuneScape gold over 30 million dollars on Grand Exchange. Even though medium clues don't offer the same high-priced rewards as simple scrolls but they have an increased chance of Ranger Boots than Easy Casket does in the Cape of Skulls.
Additionally there are more rewards for opening Medium Casket than you would for a simple one (so you could be expecting things like shield h3, shieldh2, or helm H3). Apart from ranger Boots with a special drop list, you'll also get Spiked Manacles that cost over 1 million. Other rewards aren't as significant like these two items.
While it does have the same unique drop table in terms of value to Medium Casket - from hard difficulty to easy, it does offer an opportunity to play the mega-rare table. There are a range of extremely expensive items such as 3rd Age Equipment and Gilded Parts with a value of tens or even hundreds of millions (like 3rd Age Platebody). Also, items that are part of a exclusive drop table are extremely valuable as they come with four items that have a value of more than one million gold. In addition, you get more rolls at rewards when you play a Hard Clue than a Medium One, so in general they will yield higher drops.
Similar to the previous box, you'll have a chance to buy rs07 fire cape win unique and mega-rare items with values of tens of even hundreds of millions. The difference between this casket and the other one is that you have better chances of receiving Gilded drops, as well as a bit smaller chance for Third Age items.