I would get the Corolla if the mechanic checks it. 

Lexus IS's have a long long history of  premature inner front tire wear.  The front tires often have to be replaced every 10-15K miles.  Lexus says its "normal".  Its only normal as part of a defect that Lexus refuses to address or even admit.

You can improve it somewhat  but have to replace  front bushings, and it likely will only improve, not solve the problem.

Google it and its also extensively discussed on the Lexus forums.

If you want long life and low maintenance, get the Corolla.

I'm by no means saying the IS250 or Honda are bad vehicles. I'm just saying that, in my opinion, of these three exact cars the Corolla would probably be the best choice.

Unfortunately, I would not go with any of them.  The Lexus IS will cost more to maintain/repair moving forward, especially since it is already at almost 200,000 miles.  The issue with the inner tire wear above that joec mentioned - if the issue is widespread - would mean new tires frequently, and that can get annoying fast.

The Honda Accord EX is the 2.4L I4 and that model year was part of the 2008-2012 susceptible to oil burning, which was only pronounced if the previous owner did not religiously change the oil every 3,000-5,000 miles.  And here you are saying it had previous owners, which is scary because you don’t know how it was taken care of.  See my past write up below on that issue:  it’s a shame too because the EX came with a manual transmission as standard so a 4 cylinder with manual would be ideal for longevity:

https://carkiller.com/scottykilmer/postid/114000/

Finally, the Corolla seems the most attractive of those 3 however the 2014 Le ECO Plus came with a different engine and transmission than the rest of the Corollas in the lineup.  The engine (2ZR-FAE) had issues with its Valvematic system, and we list it below on the year/engine combo Corolla to avoid along with issues with the CVT transmission (which the LE
ECO came with):  the other 2 trims (L, S) did not come with the CVT and the other 3 trims (L, LE, and S) did not come with that engine (with Valvematic technology).  The L and S are also better options as they came offered in manual and 4-speed AT only (but at least those were proven).  Plus that one you are looking at with the AC going out - it’s not clear what the root cause is and worst cause looking at an expensive repair bill.  Also, realize that CVT in the Corolla was first used around that model year, so you know there will be some growing pains;  worst case, looking at potential CVT replacement as they seem weaker than their 4-speed AT and their manual.

https://carkiller.com/scottykilmer/qa/progressive-common-and-major-problems-toyota-and-honda-vehicles-not-to-buy/

https://m.youtube.com/watch?v=mJB8LdMrM-w