Reasons Blockland is better than...

Roblox

 * Blockland is free (Demo only, full version is paid) (Seen gameplay, didn't play)


 * Mods are easy to apply. Just download, slap it in the correct folderm and boom ,you're done.


 * Maps, blocks, NPCs, vehicles, items, effects, lights, spraycans, skins


 * Skins: Can change shape of arms, feet, lower section, hat, textures


 * Lights, effects, vehicles, items applied to blocks


 * Also sounds


 * Mods easy to find (RTB)


 * Although the Demo is one-player and LAN only...


 * Programmable NPC mods (My favorites were the Mutalids and the Hydralisks)

Minecraft

 * Actually...they're on the same level. (Haven't played, seen gameplay)