Shape, best for decoration:
MY FAV IS Western Guildhouse Darashia. This garden with fountain inside is really cool.
* Bronze Brothers Bastion, Rathleton. This swimming pool on the roof <3
* Carlin Clanhall i love this garden, shape, floor...
* Halls of Serenity, Yalahar. Not much like "shape" this guildhouse, but this swimming pool is beautiful <3
* Magic Academy and Ivy Cottage is perfect for deco too.
The most sentimental guildhouses for me:
* Suntower Carlin, guildhouse my family on Antica <3
* Steel Home in Venore. I love this Schadenfreuder guildhouse on Antica. Nice place with nice owner, I have many memmories with this place :)
* Warrior's Guildhall most desirable guildhouse ever. Very nice place to talk, teeming with life on Antica.
* Outlaw Castle - the ugliest guildhouse ever, but I made first Christmas in Tibia on this guildhouse. [Greetings Proland]
The most impressive in terms of decoration on Antica is Swamp Watch, Venore by my friend :3