Anyone can recommend those steamboat buffet with no time limit..

Is the 天外天 ximen branch better or the 马辣顶级麻辣 steamboat better (the one near to Holiday KTV at ximending)?
Anyone whom has tried both can advise?
So which is good? Tian wai tian? Can make reservations?
What food do they actually serve? Much better than sg steamboat @ bugis?

What food do they actually serve? Much better than sg steamboat @ bugis?
马辣顶级麻辣 is the new kid on the block now and needs to queue super long if you have not make any appointment for it. 天外天 is the 老字号,so both is just as good if not Mala is slightly better.
Well if you are not intending to queue and wants a walk in, i guess you are only left with 天外天。
What food do they actually serve? Much better than sg steamboat @ bugis?