All should work more or less the same due to the same consistent sensor readouts. Can't remember which but some readings are presumed / calculated although as far as I know you shouldn't see different results with different software.
That 95 degrees is super close to the tjunc of your CPU... Better get it sorted asap!
Also, my i7 4790k is hovering around 30ish when idle so that might be off as well. Had a similar experience with a Q8200 which was actually running so hot for so long (years+) that the thermal paste was completely vaporized. Once I reapplied it the temperature dropped by like 15-20 degrees... With that said though, it isn't always the case as if your paste is still going strong reapplying it won't change much.
edit: If you want to try another software, I am using HWMonitor. Super similar to CoreTemp which is bugging out on me for some reason.