In honor of Thanksgiving, a few game features that I'm thankful for (and wouldn't mind if other games copied):
Currency, mount and quest item storage
Basically all of the major games offer some form of out-of-inventory storage for items players are obligated to collect. In WoW, it's mounts, minipets, keys, and currency tokens. In Warhammer, it's currency tokens and quest items. LOTRO also stores certain quest items (monster parts, not items players use on something) and will be getting a mount panel, but is sorely lacking in token storage. EQ2 has a very inconsistent system, with some mounts and minipets classified as spells and others taking up space. (EQ2 tokens do not get a separate tab, but many are heirloom and thus can be sent to bank alts.)
Either way, developers are learning that, if they expect us to collect things, they need to provide some way to store them.
Travel with tradeoffs
Between LOTRO's reputation/deed-based swift travel routes and WoW's Argent Tabard, there's an encouraging trend toward allowing players to get to places where they have already been through the local quests more quickly.
Meanwhile, I got an interesting item from the low-level Hunter's Vale dungeon in Warhammer - a cloak that offers a 50% runspeed buff that breaks on any damage, with a 5 minute duration and a 20 minute cooldown. This cloak is a clever low level travel time solution for getting back to town that does not take the place of a true mount for later in the game.
Overall, I'm not always opposed to in-game travel on principle. I just think that the travel needs to be limited to reasonable amounts of time. In my view, this kind of solution offers a creative compromise that doesn't totally remove distance from the game, but also does not punish players with large amounts of travel time for the crime of actually attempting quests (which tend to send players places).
Any race, any class
This is an EQ2 innovation that adds a flavor of uniqueness to the game's characters.
Turbine and Blizzard stubbornly argue that their lore forbids certain class combinations. Though it's true that Tolkien's Hobbits don't practice magic, the overwhelming majority of Hobbits are also peaceful agrarian folks who do not put on heavy armor and wade into large packs of foes swinging two large weapons. It is understood that player characters are not part of the helpless silent peaceful majority - if every NPC in the village were as capable as the players, they would be able to handle all of the local threats themselves.
The fact is that the lore is vitally important to the developers when they're trying to justify limiting options on the character generation screen, but completely dispensable when they want to slap Mr. T's head on player characters or set up their travel and death systems in such a way that it makes sense to jump off of cliffs as a shortcut back to town. There's no reason why the player characters, who are by definition exceptional members of their societies, cannot be exceptions to narrow lore restrictions.
Cosmetic, Dye-able Outfits
Warhammer has armor dyes and EQ2 has cosmetic armor slots, but only LOTRO offers BOTH dyes AND not one but two cosmetic armor outfit slots. When I complete a quest, the first thing I do is check whether one of the quest rewards looks unusually cooler than what I have on. A quick trip to the broker allows you to dye your latest trophy to the appropriate color. In Allarond's case, I realized that I had collected some armor that would look great in green for the journey into Mirkwood, while the second slot allows me to preserve my old navy-blue look for traveling less forested locations.
Text-assisted vendor sales interface
The vendor interface is one area where Blizzard has inexplicably declined to make significant improvements to WoW. Items accumulate in your bags randomly as you loot them, and it is up to the player to scan each icon individually to determine what it is and whether to sell it. By contrast, LOTRO and EQ2 have alphabetically sorted lists that display the name of the item and allow you to safety lock items you don't want to accidentally vendor.
These things may seem like minor touches, but they do a lot to streamline the process of clearing out your bags at the end of the day's adventuring, and I wish that Blizzard would borrow one or more of them.
That's my list, what features are you happy you have in your game of choice?
Happy Thanksgiving, everyone!