I have stayed in both Hyderabad and Bangalore but will prefer Hyderabad.
Barring the area near SEZ and IT parks, rents are less when compared to Bangalore for similar flats. My collegeues stay in prime areas and one guy is even paying 20k for 2 BHK. Electricity charges are less as well. Overall, expenses will be less in Hyderabad when compared to Bangalore unless you choose to go to expensive cafes and pubs in Jubilee/ Banjara Hills every weekend
Summers can be hot. But people who grew up in North Western India say that Hyderabad summers are still tolerable compared to their hometown.
There is Hyderabadi Hindi so the language politics is less.
Hi-tech City looks very well developed when compared to major areas of Bangalore. But overall Bangalore is way developed when compared to old Hyderabad.
Hyderabad doesn't provide you a weekend gateway like Bangalore (Nandi hills, Gokarna) etc. so it will be disadvantage for those who like to go out (I am an introvert and prefer my room).
Many companies are moving to Hyderabad although Bangalore still provide more options, Finance companies are less in Hyderabad but this is changing. GS opened it's branch in Hyderabad in 2021
Finally, all my school and college friends are in Bangalore, Hyderabad gave me an opportunity to interact with new people.