Cons: 16 bit graphics. Laggy on most computers. Buggy. Slow multiplayer with seperate server launcher.
16-bit graphics? I hope you know that's intentional. Since everything in the game is blocky, the graphics were made to match. Graphics don't make up a game.
Laggy on most computers? How old is your computer? Were you coming from the SMP "laggy"? Multiplayer is laggy because the game isn't even finished. We're still in Beta, if I remember correctly.
Pros: Way better graphics. Better multiplayer. Virtually no bugs. More features. You don't have to enter IPs to enter a server.
Cons: No good survival minigame with all of the features of Minecraft. Can't get new texture packs.
The graphics are more high-quality in Blockland because that's what they're supposed to look like. There are, in fact, some bugs in Blockland. Minecraft isn't finished, so more features will likely be added to the game in the future. Sometimes you have to put in an IP to connect to a server.
I'm sure there are mods for a good survival mini-game in Blockland. For instance, ZAPT. And yes, it is possible to get texture packs, try looking up Squideey's texture fixes whatever they are.
But this looks pretty lovey
-snip-
Is that from Minecraft?