I would choose the instrument I'm successful at........ (to blow up an account, either of them does the job)
Generally stock trading is easier as you have more research available to you, and many stocks out there which you can decide worth trading or investing and every country has stock market.
Some don't like when you give a realistic rational reply. I get it all the time. Anyway what it really comes down to it, its personal which might be better.
Is there an appropriate answer for such such a question ? (reminds me of BS Telegram groups....) Do you prefer crypto or e-mini ? Do you prefer day-trading or investing? Long or short ? Anyway how many people have an edge for forex and stocks? So I really thought a rational answer will be the best one in this thread.
Develop a thicker skin - mkt not gonna give two shits about your feelings - simply the nature of this business as for which one to chose which one fits your personality and time schedule the best which one fits your ability to fund an account best which one fits your risk tolerance the best which one fits your eye the best the tools you have at your disposal - which one best fits those your volatility appetitive - which one fits that the best trading is only about extracting money from others - which would provide you the best opportunity to accomplish that these are all answers you need to address - our opinions don't make a shit akin to asking how long is a piece of string damned if I know RN
One more to add to above..., arguably the most important one OP Which one are you interested in most / which one piques your interest most RN