Although Lub's service seems promising, he knows what to do.
Lub will know what to do. But personalities of the hoster's aside, Kalphiter makes more sense, especially since America still dominates Blockland's forum demographic (as far as I know).
Lub is basically Ephialte's wingman. I wouldn't be surprised if Ephialtes is holding back on his plan of a hosting service, and Lub is filling in just to stick a spanner in Kalphiter's operation.
Though if Lub can offer a cheaper and more reliable option, he'll have an edge. Kalphiter's 'customer service' is bitterly poor, won't be hard to beat.