The problem is that if (eg) no deal brexit has no chance of having more votes than either of the other two options, then remainers choosing it as second choice may tactically rob may brexit of votes in the immediate second counting (?).
I dont think that it would make sense to ask less than 50% + 1 vote for remain to hold. Imo any ref should only have two options. Maybe again remain/leave, with some provision that the result should stand for (at least) x years.
Tbh, by now i dont think you will get a second ref. It wont allow for remain after 29 march & may only cares for a vote (ref or not) on may vs no deal brexit.
I am sad that britain allowed blairite clowns to ressurect as the spectre of fabled full cancelation of brexit. This is provincial and looks very bad. The ecj played its role nicely, though.