Howl-O-Scream Tampa had my FAVORITE house run of the entire season (Witch of the Woods), & arguably one of my most accomplished event nights (All houses twice, all coasters once). It's a *very* different event and I can confidently say HHN is the best produced, but HoS Orlando had the best streets of 2021 & HoS Tampa had the best value.
Howl-O-Scream is taking the energy from HHN of yore and replicating it. HoS Orlando felt like a HUGE street party, and was so much of the energy that made me fall in love with HHN. HoS Tampa has the house energy that I fell in love with from HHN 16, kind of a polished DIY feel, that's a bit grungy, but with REALLY intense actors.
If you can swing going to one of the events, if not both, I say go for it. You won't regret it.