Here are the statistics of Rinoa in the game. Intervals are by ten. These statistics are her basic statistics. No junctioned magic and no modifications yet. Meaning I haven't devoured any monsters and haven't used any items to increase her stats.
Comparing her statistics with the other characters of the game, Rinoa's stats is the best and one of the most well-rounded stats in the game. At level 100, her strength (STR), magic (MAG) and spirit (SPR) stats are the highest. Squall and Zell's STR stats comes in second at 47 which is 20 pts lower than what Rinoa has. For MAG and SPR, Selphie's stats comes second: her MAG is at 49, 14 pts lower than Rinoa's which is at 63 and her SPR is at 38, only 1 pt away from Rinoa's. Rinoa has the second best luck (LCK) at 22 following Selphie who has hers at 26. As for vitality (VIT) and speed (SPD), Rinoa stands with the third best stats. She follows Squall with 41 and Zell with 33 for VIT. And follows Irvine at 39 and Squall and Selphie tied at 37 for SPD.
Having the best STR and MAG stats, I personally always have her in my active party. With the right junctioned magic and stat bonuses and a little bit of devouring to help increase her base stats, it's easy to maximize her STR and MAG to 255. and so with that, she can deal good physical attacks and magical attacks and also be a good healer at the same time.