TRON and EOS, both altcoins are developing well, but I tend to choose eos, this coin is now more widely known, the more supporters for this coin, surely in the future more will invest in this coin
They all are good coins, at this time maybe you see EOS is more develop than TRON but actually there both successful.
There is a huge reason why they have a huge trading volume, and for me I don't need to choose between the two, I'll happily invest the two.