I prefer auxiliaries that the 5 cases of my own language and the 40802834028402183420384203842038402384203842 cases of Dative and how it is used in ancient Greek. I presume Latin uses something similar, and it has more cases(6).
Your position toward Ancient's Greek dative case makes me think you're most likely just led by the general prejudice against it in your society. 6 cases or fewer doesn't a problem to me, and probably even help making word order a little freer. Now a language from West Africa marking tense with tones, an Oceanic language using serial verbs producively, a Semitic language marking plurals moving vowel patterns all over the place, with semi predictable patterns; now that
Plus, case marking is awesome per se. Hmmm... though none of the languages I've studied have them because they either lost them (Spanish, French, English, Arabic) or probably never had them (Mandarin). That's probably a reason why all my conlangs have case as well.
Generally, English Grammar is simpler.
Ahh... That idea that English is simpler than other languages...again.
In the old forum we used to have a thread in which we exposed that English is NOT easy, coming up with the conclusion that learning English is pretty much like learning French or any other nice language for that matter. I don't really know how you dare to say it's easy, maybe because it's allegedly "your mother tongue"?
I'd really want to give you a link to there, why did the database have to be lost?! T_T
You should be aware that in general, learning another language imposes a, not huge, but ridiculous
amount of effort.