I'm going to repeat what I recently posted elsewhere. I'm really trying to keep this post as factual as I can and leave the emotions out of it. Please try to read through it in the same spirit that I'm posting it.
Here is a link to some old posts with screen shots of faction war horses in the Classic client:
http://vboards.stratics.com/showthread.php?t=5521. The first one you see in the thread is a VERY OLD faction war horse in a color that is no longer available. Poo's screen shot shows one of each type of faction war horse. (Give it a moment to load...it's a bit slow. Will also try to attach a copy if I can.)
Since the majority of PvPers are still using the Classic Client, when they see a faction war horse, they see what looks like simply a horse hued in one of four colors. Faction war horses do NOT have any kind of tack or saddle blanket in the Classic Client, as they do in the KR and SA clients. (I believe that in the KR and SA clients, all faction war horses are also black and only the tack and saddle blanket changes color to denote the faction of the horse's owner.)
Below is a comparison of the stats for faction war horses, dread mares, fire steeds, and nightmares. I've italicized the damage information to make it easier to find. The disparity in these numbers is what concerns me and what I fear will make even more people bail out of factions if there is no way to distinguish between these types of pets until one of them is actually attacking you.
The tag telling you it is dyed will not be visible while the pet is mounted and you would also have to mouse over the pet to actually see it, which could be difficult to do when you are in the midst of a PvP battle that could put you into 20 minutes of skill loss if you are not careful. Also, once the owner of the pet dismounts, using All Names probably will not show the "dyed" tag because it is supposed to show up on the second line of information for the pet.
Faction War Horse Stats:
240 Hit points
400 Strength
125 Dex
71 Intelligence
Resists: 47/35/30/35/37
Damage: 100% Physical with 5-8 Base Damage
Skills: Wrestling, Tactics, Resisting Spells, Anatomy, each of which can be maxed at 100. With no training (or deaths), wrestling and tactics are between 35-40, resisting spells is approximately 28, and anatomy is around 3.0. These pets die a lot, so I doubt many of them are well-trained; although some people DO train their faction war horses.
Dread Warhorse Stats: (Note: These are max stats. Average stats will, of course, be somewhat lower.)
650 Hit points
555 Strength
125 Dex
160 Intelligence
Resists: 75/40/40/60/50
Damage: 40% Physical, 20% Poison, 40% Energy, with 20-26 Base Damage.
Skills: Wrestling, Tactics, Resisting Spells, Anatomy, Magery, Evaluate Intelligence, and Meditation, each of which is capped at 100. An untrained dread mare generally has around 88-90 Wrestling skill; 98.5-100 Tactics skill; 82-84 Resisting Spells skill; a small amount of Anatomy skill, depending on how much it struggled before and during taming process; 31-35 Magery skill; 30-57 Evaluate Intelligence skill; and 30+ Meditation skill, again depending on what happened to it before and during the taming process.
Fire Steed Stats: (Note: These are max stats. Average stats will, of course, be lower.)
240 Hit Points
400 Strength
125 Dex
300 Intelligence
Resists: 40/80/30/40/40
Damage: 20% Physical, 80% Fire with 11-30 Base Damage
Skills: Wrestling, Tactics, Resisting Spells, Anatomy, each of which can be maxed at 100 with the exception of Resisting Spells which, depending on the pet, can go as high as 108. With no training, Wrestling and Tactics always seems to start at 90 after taming; Resisting Spells will be between 92 and 108 depending on the pet; and Anatomy will be anywhere from 0 to 100 depending on how much the pet strugged before and during the taming process.
Nightmare Stats: (Again, these are max stats. Average stats will be lower.)
315 Hit Points
525 Strength
125 Dex
125 Intelligence
Resists: 65/40/40/40/30
Damage: 40% Physical, 40% Fire, and 20% Energy with 16-22 Base Damage.
Skills: Wrestling, Tactics, Resisting Spells, Anatomy, Magery, Evaluate Intelligence, and Meditation, each of which is capped at 100. An untrained nightmare generally has around 75-80 Wrestling skill; 88-90 Tactics skill; 83-87 Resisting Spells skill; a small amount of Anatomy skill, depending on how much it struggled before and during taming process; 23-27 Magery skill; 24-30 Evaluate Intelligence skill; and 0+ Meditation skill, again depending on what happened to it before and during the taming process.