I am currently working on a logo (word mark) for a client. I compared different sans serif fonts and narrowed it down to Helvetica, Neue Helvetica and Neue Haas Unica.
Although the client is a startup, they want to look experienced. So even though Neue Helvetica is used in a lot of brands, I think the client is better of with a familiar look than with an experimental appearance.
Now for the running text on the website, I want to use a Google-Font for faster performance. I think that for mobile devices a sans serif would be best. Open Sans or PT Sans look both very similar to Helvetica. Is that good or bad, if they look similar?
Do you think they work together, or which combination works best?
Have a look:
http://www.identifont.com/differences?first=Helvetica+Neue&second=Open+Sans&q=Go
http://www.identifont.com/differences?first=Helvetica+Neue&second=PT+Sans&q=Go
http://www.identifont.com/differences?first=Neue+Haas+Unica&second=open+Sans&q=Go
http://www.identifont.com/differences?first=Neue+Haas+Unica&second=PT+Sans&q=Go