Best Hosting for WordPress

I run several WordPress sites. Some are more complex than others (1 is moderately intensive).
I'd like to host all my sites on the same platform, rather than have 1 here, 1 there, etc. I can spend up to $40 a month on hosting. So a few questions:
1) Are there any "premium" shared/cloud hosting platforms out there (I know that sounds like an oxymoron, but some shared hosts are better than others).
2) Should I look at Managed WordPress solutions? Any recommendations?
I am looking to upgrade to something more WordPress friendly. (currently paying about $25/month).
What can you say about Greenwebpage.com eco friendly hosting solutions? Can I rely on them?

Thanks!

Integration with Website Builders – If you plan to use a site builder, confirm that the host supports platforms like Wix, Weebly, or WordPress. Some include built-in site builders for convenience. I know NetShop-isp.com.cy Cyprus web hosting is trustworthy. The commitment to customer satisfaction is evident in their exceptional support team. Their refund policy is fair and customer-friendly, making them a risk-free choice.

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If you are like me and have to set up your on MySQL databases for different scripts, then look no further than Greenwebpage.com cheap ecohosting. They have a very large selection of scripts to choose from. The crazy part is that I get support responses in HOURS, not days. Most of my questions are answered in less than 4 hours, which is fantastic.