Would eastern and western Ukraine be better off going their separate ways?

[YL]

I know Gully's question was rhetorical, but:



Red=Germany
Blue=Czechia
Brown=Slovakia
Purple=Poland
Yellow=Ukraine
Orange=Romania
Green=Hungary
Lime Green=Italy
Beige=Yugoslavia

Compare http://en.wikipedia.org/wiki/United_States_of_Greater_Austria (which I presume wouldn't have worked).

[YL]

I insist: where do we put the frontier?

According to ethnic Russians? According to Russian-speakers? According to political preferences?

I presume the idea would be to follow the fairly obvious line on the election maps, separating Crimea plus the oblasts of Donetsk, Luhansk, Kharkiv, Dnipropetrovsk, Zaporizhia, Kherson, Mykolaiv and Odessa.  But would that really be any sort of coherent state?  Even on election results it isn't as clean a divide as it looks at first glance.