Aventa is what I have - works well for my ~5000 lb jeep. I selected it because it was a good deal used via Craigslist. Any of the major names in tow bars will give you good service, IMO.
Vince and Susan
2011 Tiffin Phaeton 40QTH (Cummins ISC/Freightliner)
Flat towing a modified 2005 Jeep (Rubicon Wrangler)
Previously a 2002 Fleetwood Pace Arrow 37A and a 1995 Safari Trek 2830.