Better is a quite subjective! Best customer services, best price, best data options, best software they provide, best supported applications the data feeds...
Not trying to be difficult, just recognizing that your question might need a little more focus.
IQ Feed is significantly cheaper, and if you order it as an Amibroker customer, real-time futures are included in the $50/month.
Their support is great too; although I have been happy with Esignal's support in the past.
Most charting programs support both data providers.
All the esignal data comes from Comstock and tends to be a bit rough.
DTN get most their data direct from the exchanges but the data quality is also pretty rough. IQFeed is actually surprisingly reliable in my experience and more reliable than esignal. If DTN were to put some effort in sorting out data quality issues it would be a really good feed.
CQG is used by a lot of prop futures traders and works well for this. For stock trading you could probably find something better.
If you want a really fast accurate and reliable feed with broad product covergage then it has to be bloomberg or Reuters.
I haven't tried it but this might be worth a look as it uses Reuters data
FYI the realtime tick charts (Athena Charts)in that platform miss ticks like crazy.
I tried for over a year to get them to fix it. While they admitted
the problem existed they were never able to resolve it.
If you don't need realtime tick charts, it's quite good.
Forgot to say that the Athena Charts in that platform are
just a toy compared to eSignal charts. If you want somewhat
better charts, you must add Metastock to the platform.
But then it's costly, and IMO is far from equalÂ@to eSignal.