Every holiday is commercialized these days. But I think this has helped Halloween find its own identity. It's been freed of its religious roots, both Pagan and Christian, to become a masquerade festival celebrating all things spooky which everyone can enjoy. You can have the Halloween you want, as elaborate or simple as you please, tailored to your own tastes and beliefs.
The rest of the "Holiday season"... not so much. Thanksgiving is forced traditional food with family, at least some of whom you're likely to not enjoy the company of very much. Then with Christmas/Hanukkah/Kwanzaa/New Year we've got all the commercialism of Halloween and then some, plus schmoltzy sentimentality and a bittersweet reminder of our own aging.
Plus the yearly bickering between religious and secular groups over "the meaning of/reason for the season". Because some can't accept that the winter solstice has been celebrated by different cultures in different ways for many thousands of years. Maybe it's not as bad in countries other than the USA. But every. single. year. here there are thousands of people (mostly the more conservative Christians) who act like saying "Happy Holidays" instead of "Merry Christmas" is a personal affront to them, and will miss no opportunity to moan about someone wishing them a good day with a more inclusive phrase than they wanted. In spite of the fact that they are celebrating two holidays closely together, counting New Years. This is just one of the ways the never ending "war for the meaning of Christmas" happens for at least 25 days every year.
So, yeah. Halloween is more customizable, more inclusive and just more fun.