What current brand do you have now? We had an Open Range (from 2010) 399BHS - 40' long with Lippert's first iteration of 4 point (non auto-leveling) landing gear. It worked fine for that camper (was only 10800 dry weight even with 5 slides) - I learned how to manually level 4 point systems - also used it to do maintenance - repack wheel bearings, etc. and eventually wore out the front landing legs - they were very easy to replace and not too expensive.
The ease of servicing the electric systems versus hydraulic systems steered me towards the S-Class series. Love the speed of hydraulic - yes it is a great system, but if it fails it generally requires more effort to repair it, and may leave the system(s) unusable. Having the electric slides (each is independent) and electric landing gear (if a jack fails it is easy to replace it or temporarily remove it and work around it).