Zombo, I'm not sure I get how you think Cleary has so much more potential than Booth. Booth has been very good every year in the league, except last year, not just 2 good years. I think the only question with him is health. He's done the following:
2008 - 40pts
2009 - 60pts
2010 - 16pts in injury shortened 28 games (extrapolates to 47pts over 82 games)
2011 - 40pts
2012 - 30pts in 62 games (extrapolates to 40pts over 82 games)
2013 - write-off due to injury
2014 - 19pts in 66 games.
So, yes, health is definitely a problem, but for a guy that can put up 40 - 60pts or more if healthy, a 1 year, $1.1M contract is basically zero risk.
For Cleary, he's been on a steady decline, which shouldn't be expected to change as he's continue to get older (he's 35 vs. Booth who is 29). Cleary signed for $1.5M + potential $1M bonus + NTC.
Honestly, I don't think either deals are bad since the $$ are really low (below league average), but if I had to pick the better deal, it's obvious to me.