✔ 最佳答案
Don't use 忒 because this word doesn't really make sense...
Chinese people do always love grand and complex stuff. 帝 means "emperor" and has a same meaning in Japanese so it is very commonly used in brand names, names of housing estates, restaurants or even parks...but for product name I think you better make it into two words such as 帝皇(still means emperor but sounds better than just 帝). It really depends on what product it is though.